Leo was socially awkward S.H.I.E.L.D. tech specialist. But despite his awkwardness, he got along remarkably well with his research partner, Jemma Simmons. The two of them were stated to be similar to inseparable siblings. He was recruited by Agent Phil Coulson to be a part of his new team along with Simmons.
Shortly after Coulson took up his responsibilities as the director of the newly reformed S.H.I.E.L.D, Simmons left the team. This caused Fitz, who was already brain damaged from his near-death experience, to become increasingly mentally unstable, even hallucinating that Simmons was still by his side. Due to his deteriorating mental state, Coulson believed Fitz would never be able to successfully develop cloaking technology for the Bus, and had Skye, May, and Trip recover a Quinjet with cloaking technology the military took from S.H.I.E.L.D. instead.
Fitz was later tasked to develop a means to stop Absorbing Man, a Hydra assassin who had the ability to absorb any substance into his body and transform the molecules of his body into that substance. However, due to the damage to his brain, Fitz struggled to convey his ideas to the people working for him, including the mechanic Alphonso "Mack" Mackenzie, leading to frequent outbursts of rage. With Mack's help, Fitz was able to point them to a device he envisioned before his brain damage. Although he and Mack began to bond over their work, Fitz was still mentally unstable as he continued to hallucinate Simmons' presence around the Playground.
While Coulson led his team to retrieve Donnie Gill, Fitz and Mack stayed behind at the Playground. Fitz took this opportunity to investigate their "asset" in Vault D that was being kept secret from him, only to find it was none other than Ward. Fitz started to break in front of the man who almost killed him, so he cut off the oxygen to Ward's cell so he could do to him what had happened to Fitz during his brush with death. Fitz stopped torturing his prisoner when he told Ward everyone else was on the hunt for Donnie, and Ward warned them that Hydra would try and reactive Gill as a brainwashed agent. Later, Coulson reprimanded Fitz for what he did to Ward, and revealed to him that Simmons was working undercover as a scientist for Hydra.
Although he had been bonding with Mack, Fitz continued to struggle with socializing with his fellow teammates. When an impostor posing as Agent May sabotaged the Bus with a computer virus, Fitz realized the plane was going to explode. As the rest of the team split up to try and repair the damage already done, Fitz and Hunter headed to the heart of the plane's computer systems to stop the virus. However, the damage to Fitz' motor skills made him incapable of manually restarting the systems, forcing him to instruct Hunter on how to do this. With Hunter's help, Fitz was able to stop the virus moments before the plane exploded. Later on, Hunter arrived on the plane with beers for himself, Fitz and Mack. Fitz reluctantly accepted the beer, noticed his hallucination of Simmons was no longer there, and, although he had no stories about an ex, told them about a girl rejected him.
Soon after, the real Jemma Simmons returned from her undercover mission. Fitz greeted her with hesitancy.
Fitz and Simmons discussed the specifics of the HYDRA Splinter Bombs as well as Fitz's situation which led to a brief argument between them. Mackenzie then came to discuss the specifics with Fitz which led to the discovery that Vincent Beckers, the grandfather of the Belgian Foreign Minister, was in fact a HYDRA agent in the 1940s who developed the weapon. Fitz later had a brief amiable conversation with Simmons. When Mackenzie and Simmons spoke of Fitz's predicament, he pointed to her as the cause of his trouble to which she cited as the reason why she had left.
Fitz went with Alphonso Mackenzie and they retrieved the body of Janice Robbins so Jemma Simmons could perform an autopsy. She disagreed with the words of bravado that Mack told Fitz.
Fitz and Mack were told by Skye to come to the secret room containing the Theta Brain-Wave Frequency Machine; their strength might be needed in case Phil Coulson acted erratically during or after the session. As predicted, Coulson had to be held down after the session ended.
As Mackenzie and Fitz played video games, because, according to Mackenzie, playing helped Fitz's brain, Mackenzie complained about how Coulson's brain was erased. Fitz explained that memories cannot truly be erased; the brain makes back-up files that Coulson was accessing. During their conversation, Simmons entered and showed them Skye locked in Vault D.
Later, Fitz was among the senior agents that were assembled as Director Coulson gave the new mission: find the city that matched the City Blueprints before HYDRA can.
Wanting to return to field work, Fitz accompanied Skye and Antoine Triplett when Director Coulson took them to Hawaii. Coulson ordered Fitz to practice on the Bus rebuilting a transceiver repetitively until he can do it under six minutes. Fitz admitted that he had only one fully functional hand; Coulson told him to rely on muscle memory.
When the Bus got to Laura Creek, Australia, Coulson took Fitz and Triplett with him to infiltrate a laboratory that housed a powerful satellite receiving station. Fitz's job was to install the transceiver so that the city matching the City Blueprints could be found; he admitted that he was able to do the job in under seven and half minutes, not six, when using one hand. The team entered the station, nonetheless. There they were attacked by HYDRA and Triplett got shot.
Calvin Zabo helped Triplett but used that firefight as a way to meet Coulson. As he fled, Coulson and Fitz gave Triplett the blood clotting agents needed to stop him from bleeding to death. Before they could tell Skye about meeting her father, a match was found.
When he returned to the Playground, Fitz saw Mack driving a radio-controlled miniature version of Lola through the halls. Fitz, wondering if the toy could fly, asked Mack to talk to Jemma Simmons for him; Mack told him that he needed to confront her sooner or later.
Fitz was chosen to accompany Phil Coulson to Puerto Rico to destroy the city that matched the City Blueprints. The team also included Bobbi Morse, Mack, and Simmons. Upon arrival, the silence between the two scientists caused Mack to leave them alone so they could talk. As Simmons tearfully tried to tell Fitz why she left and went undercover months ago, Fitz interrupted her by saying that he could not work with her anymore. She misinterpreted his statement and asked was he quitting S.H.I.E.L.D.; he told her that he thought it best for him to work for her, making her leader of the science team.
Inside Castillo San Cristóbal, Fitz and Simmons prepared the D.W.A.R.F.s to test the structural integrity of the city, so when it was destroyed, it would not affect the residents of San Juan. When the drones lost power after entering a hundred foot shaft, Mack went down to investigate. Hearing his screams, the others hoisted him up and watched as he slapped Coulson across the room. Fitz gave Coulson an I.C.E.R. to stop the attack of the super-strong mechanic, but it was ineffective. Fitz, holding a gun, pleaded with his friend to stop his assault, while Coulson, attempting to keep Simmons from falling into the shaft, ordered him to fire. He did not because Morse electrocuted Mackenzie and he fell stunned into the shaft.
Fitz and Simmons brainstormed on how to save Alphonso Mackenzie and destroy the city when they entered the Bus. Together they decided that the city was like a living organism that co-opted Mack to have him defend it and that hazmat suits would keep the city from detecting their presence.
Antoine Triplett was partnered with them to destroy the city with the four mechanical bombs he had. Inside the Kree City, Fitz decided that for expediency, they needed to separate to set the charges.
After the charges were set, Fitz witnessed as Triplett reported to Melinda May that their task was complete. Triplett immediately returned to the city to defuse the bombs when they learned that Skye and Phil Coulson entered.
As Fitz waited with Simmons, an earthquake occurred; this caused them to hug in panic as the island shook.
Upon return from Kree City, the senior agents dealt with the experiences differently; Fitz helped Alphonso Mackenzie with his work. Soon, Fitz found work for himself; he decided to repair and analyze Skye's heart monitor to get a biological replay of what happened to her. While working, Fitz asked Mackenzie to share his feeling about his experiences as a thrall of the Kree City. Mackenzie shouted at Fitz that he could not understand the feeling of having his body betray him; Fitz calmly stated that he could.
Later, Fitz approached Skye in her quarantine. He began questioning the data he learned from the heart monitor, which he called "inhuman", as well as how she was unaffected by the earthquake. When he realized that she was the epicenter, Skye panicked and caused the overhead lamp to explode. Fitz ran away quickly.
Fitz returned when Melinda May and Jemma Simmons saw Skye cut and bleeding. As Skye was about to admit that she was changed, Fitz interrupted her and showed the women Skye's blood test; he had changed the results to have it show that Skye was normal. When the women left, Fitz cleaned Skye's wound, explaining that until everyone has calmed down from their traumatic experiences, especially Simmons, who wanted to destroy all things alien, it was best to keep her secret between them. Skye cried and hugged Fitz. He told her that there was nothing wrong with being different.
Fitz attended the vigil the senior agents had for Antoine Triplett.
While continuing the search for Raina, S.H.I.E.L.D. took notice of Lady Sif, who had appeared in Portugal with no recollection of her past or why she was on Earth. They discovered that Sif had fought an unknown man who wiped her memory with a hammer-like device. Following a confrontation with the man, Skye began to fear more that control over her abilities was wavering, which she confided in Fitz, who attempted to ease her mind, though they were interrupted by Lance Hunter.
Upon locating the man, who was revealed to be a Kree by the name of Vin-Tak and bringing him in for questioning, the Kree restored Sif's memory and explained that he had come to Earth after being alerted to Raina's activation of a Diviner. Fitz and Jemma Simmons opened a crate Vin-Tak unearthed that supposedly had more Diviners; during which Fitz had inadvertently left his test results of Skye's blood out for Simmons to see. He attempted to explain that they were just fake results he created; Simmons was not completely convinced.
Meanwhile Vin-Tak explained the purpose of the Diviners, and the Kree's role in the creation of the Inhumans. Realizing that she was in fact one of these people, Skye began to panic and lost control of her powers, exposing them to her friends. Both Sif and Vin-Tak were ready to strike down Skye in order to stop her supposed threat, but Fitz, having overheard, was quick to come to Skye's defense, furious at their suggestion of murdering her. Both Coulson and May defended Skye as well and attempted to get her to safety. Coulson told Fitz to get "bambino"; while running, he came across Alphonso Mackenzie and Bobbi Morse, urging them to help stop the Kree. Mackenzie, and later Hunter, were quickly defeated; Morse managed to keep Vin-Tak busy enough for Fitz to locate the Destroyer Armor Prototype Gun. The blast stunned Vin-Tak long enough for Morse to erase his memory with his own weapon.
Later, Fitz somewhat apologized to Simmons for not telling the truth, though, at the same time, he defended his choice, due to his belief that the others would have turned against Skye. The others, furious that he lied to them, essentially proved to him that his fears were correct, with Mackenzie stating they needed to be kept safe from Skye. She overheard the exchange, but would not stop to talk when Fitz chased after her; instead she retreated to the Bus.
As Melinda May trained Skye, Fitz interrupted the session to check on her well-being. May became frustrated with his presence; so when he asked if it was worthwhile, May challenged Fitz to spar with her. Skye politely asked him to leave since she was doing well.
Jemma Simmons continued to give Fitz the silent treatment, telling Bobbi Morse that he violated the almost sacred respect they had for science by making false test results for Skye. She further explained that she was even more hurt that their relationship had deteriorated to the point where he lied to her.
When Andrew Garner arrived to give Skye a psychological assessment, Fitz learned that he was May's ex-husband.
Sometime later, Fitz wanted to microwave some food; when he went to the kitchen area of the Playground, he saw May laughing and smiling with Garner. He chose not to interrupt and traveled to where Simmons was working to heat his food. He told Simmons why was there and how May was acting. This sparked a friendly conversation between them, speculating on Garner's and May's relationship.
Jemma Simmons checked Skye's casts; Fitz listened as Skye complained about how she internalized her power to show she had control. Fitz told Skye that he admired her for having a power, sparking an argument between Simmons and himself as they compare her to the Hulk and Captain America, respectively. The Bus started to shake; the two both apologized to Skye for arguing around and about her.
Fitz started spending a lot of time with Skye talking to her; so much so, Skye commented on it to Phil Coulson when he took her from active duty.
When he realized that Skye was gone, Fitz asked Simmons what she gave Coulson and how it was related to Skye. Simmons said that her efforts were for helping Skye's change; Fitz argued that Simmons was the one who had changed because she became closed-minded.
Fitz sarcastically asked Jemma Simmons how her science experiment was going after she communicated with Skye at the Retreat. Fitz was asked by Phil Coulson to determine what the extra mechanism was that Alphonso Mackenzie had within the toy replica of Lola that Coulson had kept in his office.
During the blackout caused from Mack's EMP, Fitz was found by Melinda May. The two found Coulson and all compared notes; Mackenzie stole the Toolbox was on the run. Fitz told Coulson that Mackenzie had to be found as he went to secure the Playground.
Inside a maintenance closet, Fitz found something weird; as he was investigating, he was approached by Mackenzie. Mackenzie told Fitz that he was not there to hurt him, but he wanted Fitz to leave that closet. Suddenly, Mackenzie grabbed Fitz and fell upon him as the gadget exploded, allowing agents loyal to Robert Gonzales to enter.
Fitz and Simmons tried to comfort one another when Anne Weaver approached Simmons to help to diagnose Mackenzie's wounds; Simmons did not comply until Fitz approved.
Robert Gonzales personally approached Fitz and Jemma Simmons as they stared at the Toolbox. He told them that he wanted them as his field agents but Phil Coulson approached them first. Gonzales wanted Fitz to access the Toolbox. Simmons asked what would happen if he refused; Fitz told him that he was leaving to pack his belongings.
As he was packing, Alphonso Mackenzie approached him to convince him to stay. As they were talking, Mackenzie revealed that Simmons was working on accessing the Toolbox using Coulson's DNA.
Fitz went to the Holocom and learned what Simmons was doing. He ran to Simmons' laboratory, asking why she was betraying Coulson and forcing him to leave. He grabbed the Toolbox and agents drew their weapons to have him release it. Fitz pitied them for their betrayal and left with Simmons giving him one of his bags.
Catching a taxi cab, Fitz pulled the real Toolbox from the bag Simmons gave him, along with his favorite sandwich. However, he soon found out that Gonzales sent agents to track him under the hopes that he would lead them to Coulson.
Fitz took the Toolbox to a diner, where he opened it in the diner's restroom. He accessed Phil Coulson's tablet from the box and contacted him and Lance Hunter. However, other patrons (Gonzales' agents in disguise) began to become impatient and banged on the door. Fitz asked Hunter for a way out, and Hunter began describing an escape method.
Fitz ran to the roof of a building and was picked up by Phil Coulson, Lance Hunter, and Michael Peterson, whom Fitz asked about his upgrades. Giving Coulson the Toolbox, Fitz was not happy to hear that they were on their way to retrieve Grant Ward. When Coulson and Deathlok brought in Ward and Agent 33, Fitz sat on an opposing side of the Quinjet, fingering his gun. Ward asked how Fitz was doing, and Fitz leaped from his seat at him only to be held back by Coulson and Hunter. Fitz calmed down, but would not answer Ward's question. When a supposedly brainwashed Sunil Bakshi set up a meeting with List, Fitz watched through Deathlok's eyes with the others. When Bakshi offered up Deathlok as incentive, the Quinjet erupted, and Agent 33 held a knife to Fitz's throat. As the standoff continued, Fitz was the only one who noticed that Deathlok was targeting everyone in the HYDRA meeting. He told the others, and the standoff ended. Fitz told Deathlok to play along. Later, when the rest of the team followed List to a building in Milwaukee, Fitz stayed behind in the Quinjet as backup while everyone else entered the building.
Later, after Coulson turned himself into Gonzales and the two worked out an arrangement to stop HYDRA, Coulson had Fitz, Hunter, Ward, and Agent 33 board the plane. As they were doing so, Fitz talked briefly with Hunter, asking him about his wounds. Hunter replied that he was in more pain from seeing Ward and Agent 33 talking to each other like a couple.
Coulson decided to take Fitz, May, Simmons, and Ward on the mission to save Peterson and Lincoln Campbell who were imprisoned at List's base. As they were preparing for the mission, Fitz and Simmons both expressed their mistrust toward Ward. Fitz expressed his wish to kill Ward, and Simmons suggested that they can. At first, Fitz thought that she was joking, but she revealed that she planned to kill Ward with a splinter bomb. As they got on the plane, Gordon teleported Skye onto it, reuniting her with her old team, much to Fitz and Simmon's pleasure. Fitz and Simmons eagerly asked her lots of questions about where she had been and about her powers, but Skye was reluctant to answer them with Ward around, but she promised that she would tell them everything soon. As Ward prepared to update the team about their mission, Ward sensed their hostility towards him, so he tried to apologize for betraying the team, admitting that that was what he regretted most, not even ejecting Fitz and Simmons's pod into the ocean. He tried to remind the team of the good times that they had, but everyone, including Fitz, remained unmoved by what he said and expressed their anger towards him. After the team sacrificed the Bus to get onto List's base, Fitz went with Coulson and May in one group, while Simmons went with Skye, Ward, and Bakshii in another. He quietly told her to be careful. Fitz was able to successfully carry out his mission. Later, he presented Skye with a vibrating figurine that he managed to save from the Bus before it was destroyed. He noted that the figurine shook like Skye used to, but Skye now no longer shook. Later, Fitz and Simmons talked, and Fitz admitted that he had wanted to kill Ward but was unable to and was glad that he did not become a murderer. He was also glad that Simmons did not kill Ward either, but Simmons admitted that she had indeed tried to kill Ward.
Fitz was on Coulson's office during along with Coulsom and Lance Hunter while S.H.I.E.L.D. was on the way to meet the Inhumans. Hunter doubted Coulson's decision of sending Robert Gonzales meet Jiaying and not him. Even Fitz questioned the council decision, but Coulson said to him that it was not the council verses them anymore and they were right about their decision. He said that he had not always made the right call, especially where it had came about Skye and if they didn't trust the council, S.H.I.E.L.D. would fall again. Hunter joked that S.H.I.E.L.D. would fall again if dozen enhanced people will bring terror on them, to which Fitz agreed. Coulson then said that he thought that they had spent too much time together. After which, Melinda May informed them that the Inhumans turned over Calvin Zabo, to which Coulson said that they will deal with this when they will return to the base.
After a while, Melinda May talked with Phil Coulson saying that Bobbi Morse hadn't arrived to the Afterlife yet. Coulson sent Lance Hunter to check what had happened to her. Suddenly Jemma Simmons joined the conversation and said that Robert Gonzales had allegedly shot at Jiaying. Fitz said that he had got what he always wanted, but Coulson said that Gonzales hadn't done this and ordered them to find him.
Fitz then joined to Hunter in the search for Morse. He checked the flight records from the base and saw that Morse had left the base with a Quinjet before the three others left to Afterlife. Hunter told him to change access and check the security cameras to the time before she left the the base. Fitz discovered that May had left the base twice; one time with Morse and the other time with the delegation of S.H.I.E.L.D. to Afterlife. Hunter realized that it was Agent 33 who disguised as May and took Morse on a Quintet. Fitz asked him what she wanted with Morse. After their discovery, they went to Coulon's office and showed to Coulson, Melinda May and Jemma Simmons the footage of Agent 33 taking Morse as May. Hunter said they found where the Quinjet was and May volunteered to take him to there.
Calvin Zabo was brought to the Playground and interrogated by Phil Coulson; Zabo soon afterwards had a heart attack. He was brought to the lab where Jemma Simmons tried to revive him. After she failed, she asked Fitz for an adrenalin syringe. She injected him, but it caused Zabo to transform into a powerful monster. In the moment Zabo was locked up in the medical pod, trying to get out, Coulson asked Fitz for suggestions and Fitz said that I.C.E.R.s could be a good start. As he escaped from the pod, Fitz, Coulson and Simmons started shooting at him with the I.C.E.R., but they had no effect on him. Coulson ordered Fitz and Simmons to get out of there. Short time after, when Zabo walked around the base, Fitz and Simmons lured him into the hangar where Coulson could reason with him.
Phil Coulson convinced Calvin Zabo to assist them against Jiaying, and Zabo was put under armed guard while Jemma Simmons helped counteract the effects of his formula, resulting in the reverse of his physical changes. Fitz then informed Coulson that a distress beacon from the Iliad was expanded to all of S.H.I.E.L.D. channels. Coulson realized that the Inhumans had hijacked the ship while they were fighting Zabo. He asked Fitz if he got Lance Hunter and Melinda May on the line, but he responded that he couldn't communicate with them.
Fitz then came to Coulson's office to inform him that he had built Quantum Field Disruptors devises that could make Gordon stay in only single location. Fitz and Coulson visited room the where Bobbi Morse would be analyzed since she had been badly injured. Coulson asked Simmons if Zabo was stable enough to join them in their mission to retake the Iliad, but Fitz and Simmons were surprised to hear that.
While preparing himself for going with Coulson, May and Zabo to retake the Iliad, Fitz was visited by Simmons. She started explain that after she saw Hunter with Morse, she realized that they had never spoken about what Fitz had said her in the button of the ocean. Fitz was surprised to hear that now. He said to her that there was nothing to be said about about it but Simmons said that maybe there was. Coulson then came and informed Fitz that there were on the move, so Fitz followed him, leaving Simmons crying.
- I'm trapped in here! That's not possible! What did you do?!"
- --Gordon and Leo Fitz
In one of the Quinjets heading to the Iliad, Fitz informed Coulson that someone had changed the S.O.S. signal. Coulson realized that was Skye who had done that and Fitz said that she warned them that they flew to a trap. Coulson ordered the other Quinjets to fall back while they still flew to the ship. As they landed on the the ship, Fitz got another message from Skye which warned them about improved Terrigen Crystals in the HVAC room. Zabo then understood Jiaying's plan; She wanted to use the Terrigen Mist which in the Crystals to kill all the S.H.I.E.L.D. agents. So Coulson and Fitz went to find the Crystals, Zabo went to find Jiaying and May went to the HVAC room.
The two eventually found Alphonso Mackenzie protracting a box full of Crystals from Gordon. Fitz started to put the Quantum Field Disruptors devises in their places. As Gordon returned, Fitz activated the devises and they succeed preventing Gordon to teleport to a different location. The three continued fighting Gordon but he took one Crystal. He then teleported himself directly behind Fitz, and he was stabbed to death by Fitz' iron pole while he was holding it.
With the threat quelled, Phil Coulson asked Fitz to work on a new plane for his new program he founded. Fitz also helped Alphonso Mackenzie, who was now the head of the Alien Artifacts Department, to work on the Monolith on the Iliad. As he and Jemma Simmons worked on the stone, Fitz awkwardly tried to ask Simmons to dinner; he stumbled, causing the lock on the case to loosen. After Simmons agreed, Fitz left the room, without knowing that he caused the stone to swallow her.
Not willing to give up hope on finding Jemma Simmons again, Fitz dedicated his time and work to studying the Monolith in the hopes of finding an answer. This led him to questioning if she had been sent to a parallel dimension or lost to the Microverse. The more questions he asked, the more time he took off from S.H.I.E.L.D.. Eventually he learned of a scroll casing which was said to hold the answer to the Monolith's power, Fitz tracked the scroll to the criminal Yusef Hadad, who had stolen it.
Fitz tracked Hadad to Morocco and offered him the contents of his briefcase; Hadad's men captured Fitz and only spoke to him when they discovered the briefcase could not be opened without the password. Fitz explained his reasons for coming and told Hadad that he would only open the case if Hadad gave him the scroll casing. Hadad gave in and handed over the casing, ordering Fitz to open the briefcase, Fitz did and handed over the Splinter Bombs inside, explaining that they were the weapons that killed Sunil Bakshi. When Hadad tried to kill Fitz with the bomb, it activated the flash grenade inside, during the ensuing chaos, Fitz escaped with the scroll casing while Hadad's men shot at him.
Never Giving Up
Back at the Playground, Fitz found Phil Coulson waiting for him. Coulson tried to sympathize with Fitz's feelings by comparing his loss of Melinda May to Fitz losing Jemma Simmons; Coulson attempted to convince him to move on but Fitz remained determined. He smashed open the casing and read the scroll, translating the word to "Death". Seeming to accept this as the final confirmation that Simmons had been killed by the Monolith, Coulson comforted Fitz.
Unable to accept that Jemma Simmons was dead, Fitz, after Coulson left, grabbed a shotgun and charged into the room containing the Monolith, ignoring the warning signs and kicking open the door. Without hesitation or fear, Fitz shot the locks of the Monolith's casing and stepped into its protective box. Fitz at first quietly spoke to the stone, asking it to do something and give him an answer; when nothing happened, he began to lose his temper before screaming at the stone and demanding it to do something, all while punching and kicking it to make it respond. Despite his screams, tears and strikes, the Monolith remained a stone and did not give him the answers he sought.
Lance Hunter then charged into the room followed by Phil Coulson, Alphonso Mackenzie and Daisy Johnson. They pulled Fitz away from the Monolith and locked it's case seconds before it transformed into it's liquid form again. Coulson berated Fitz over being so foolish, noting that he had already lost Jemma Simmons to it and couldn't afford to lose him too. Fitz apologised but assured him that he would never give up on finding his friend. As he sat on the ground, Fitz noticed a strange sand on his fingers which he had gained from touching the Monolith, seeing the sand gave Fitz an idea and he ran out of the room.
Once he had confirmed his theory, Fitz called the team into Phil Coulson's office where he pitched them the idea that the sand was impossible and should not exist, there for it must confirm that the Monolith is a transportation device and had sent Jemma Simmons to another point across the universe. Coulson tried to make Fitz accept that it was possible that although he could be correct, Simmons may well be dead anyway having been lost for months, but this did not stop Fitz and they agreed to continue researching his theory. While Fitz confirmed what he needed, Coulson sent Lance Hunter on his mission to hunt down and assassinate Grant Ward.
Help from an Asgardian
Fitz joined Phil Coulson in travelling to Norway to seek the help of the Asgardian Professor Elliot Randolph, who had been arrested for getting drunk and damaging property. Although Randolph initially made it clear that he had no wish to get involved as he was trying to keep his Asgardian powers quiet due to the recent fears of the public, Fitz made it clear they did not have time to wait and Coulson was able to change his mind with a threat of handing him over to the ATCU. Randolph reluctantly agreed and ripped the bars off his cell and left with them.
Returning to the Playground, Randolph looked at the Monolith and was fascinated, having never seen such an artefact before. As they discussed it's powers, Randolph made it clear they should destroy it, but Fitz assured him that he would have to go through him first. Not wishing to kill Fitz, Randolph relented and asked for more information. The team told him about the scroll which Fitz had recently recovered and Randolph recognised the writing from a castle he had visited hundreds of years ago, confirming his thoughts Randolph told everyone to join him to the plane to investigate.
The team travelled to England to the castle which Elliot Randolph had visited all those years earlier. Randolph confirmed that it was the same castle and described the party he had attended there where he had seen the writing on the walls of the castle. The group found the writing and before long, Phil Coulson found a secret passage leading to another room which Randolph had never seen before. The room was filled with ancient machinery and a trap door which seemed like the perfect size to hold the Monolith. Once they confirmed the room was designed to test the Monolith's power, Coulson called Alphonso Mackenzie and ordered him to bring it to them.
Although reluctant, Mackenzie brought the Monolith to them in Zephyr One and they set it up for their experiment. Fitz led the team in setting up their equipment as they worked out how to work the machinery. They turned on the machine which triggered a vibration that caused the Monolith to transform into liquid, Fitz looked down at it and called out to Jemma Simmons. Demanding more light to see, Phil Coulson threw Fitz a flair gun which he fired into the liquid, making it instantly vanish. Before they could get their answers however, the machine broke and the Monolith returned to stone. The vibrations also caused Daisy Johnson to collapse as she complained of a terrible noise which nearly killed her.
Despite the machinary being broken, Fitz worked out that Daisy Johnson could use her powers to trigger the same effect. Johnson agreed despite the terrible effect it would have on her and the experiment was set up for a second attempt. Johnson used her powers to create a small earthquake which caused the Monolith to turn to liquid, while Coulson set up a video feed to drop inside, Fitz attached a rope to himself and jumped inside. Fitz fell onto a desert planet in the middle of a sandstorm, without hesitation, he began to desperately call out for Jemma Simmons.
To his shock Simmons answered him and he saw her appear from behind a rock, the two friends called out to one another and desperately fought against the powerful winds to reach one another. However back on Earth Daisy Johnson struggled to control her powers and keep the Monolith liquid, forcing Phil Coulson to order that Fitz be pulled back. Fitz was just able to grab Simmons hand as he was pulled back into the portal. The moment the pair were sucked back to Earth, Johnson collapsed and the Monolith exploded. Fitz hugged his friend and smiled to the team as they celebrated their victory. Once she had gone through medical, Fitz stayed by her bedside while she slept. Once he had fallen asleep, Simmons awoke from a nightmare and found comfort resting on Fitz's lap.
Caring for Simmons
He then helped her adjust to the Earth gravity and go accompanied her to the lab, where Anne Weaver welcomed her. She then saw the remains of the Monolith. Fitz noticed that small noises divert her attention away. She told him that she wanted to go to her room to relax.
He then specked with Weaver about how distance Simmons was. Weaver told him that she Simmons need a fresh start to learn how to live again in Earth. Fitz then left the room and invited a place in a restaurant for him and Simmons.
He brought Simmons to there and told her that the invitation had been bought for months and he planed that the will eat alone. She said she did not know what to say for what he had done for her, so Fitz said that she did not have to say anything. But as she started to cry, Fitz sat next to her and comforted her.
Fitz was sent with Anne Weaver to Hollywood, California to gather evidence from the apartment of Shane and Lori Henson, two Inhumans killed by Lash. Fitz became annoyed with Weaver because she had difficulty adhering to the system that he and Jemma Simmons had developed. He asked Weaver if Simmons revealed anything to her about her experiences on the other planet; Weaver lied, saying that she knew nothing.
Returning to the Playground to analyze the samples, Weaver alerted Fitz when the hair sample of Lash began to dissolve. While discussing the strange occurrence, and if Weaver had somehow contaminated the sample, Fitz found a notebook filled with research on the Monolith. Simmons ran into the lab and abruptly grabbed the notebook from Fitz, causing the paper to fall to the floor. Collecting her research, Simmons told Fitz to leave her things alone as she left.
Later, Fitz went to Simmons' room and asked her why she was researching the Monolith; Simmons decided to give him full disclosure about her experience on the other world. After telling him about her ordeal and her relationship with Will Daniels when she gave up hope of being rescued, Fitz left the room without speaking to Simmons. She, teary-eyed, begged him to understand her feelings. Fitz told her that he did understand her feelings and showed her his computer screen; it revealed the research that he had done over the past six months that she had been absent to locate her. Fitz declared that they would save Daniels and return him to Earth.
- What? You don't think I should help Simmons rescue Will?"
"Do you think you should? He's the competition.
- --Leo Fitz and Lance Hunter
Fitz was assigned to act as technical support for Melinda May and Natasha Romanoff as they went to the Cayman Islands in search of Werner von Strucker, so he allowed his computers to run simulations pertaining to the Monolith as he made cover aliases and backgrounds. Lance Hunter, having been reassigned for his actions in the Attack on Grant Ward, entered Fitz's workplace, seeking something to do. Hunter asked Fitz why he was helping Jemma Simmons to rescue Will Daniels, a man about whom he knew nothing, when Fitz has feelings for her; Fitz did not answer, asking Hunter why he was there. Hunter wanted to help him, but Fitz quickly asked him to leave when he began touching the computers.
During their undercover mission, Romanoff needed background information on Jerome Deschamps in an attempt to diffuse a situation; Fitz did the research and conveyed the information to the sunglasses Romanoff wore.
Evaluating the fake IDs and passports found in Strucker's lock box, Fitz determined that Strucker was in Lisbon, Portugal and told Romanoff and May. Meanwhile, Simmons was behind him, finishing her technical support for Daisy Johnson; she then asked Fitz how his research into the Monolith was progressing. He said that the simulations have not yet found a solution. After Simmons left, Fitz returned to reading background information and newspaper articles on Daniels.
Accessing Simmons' Phone
Jemma Simmons asked Fitz to fix her phone that she had used during her survival on Monolith Planet; Fitz uncovered some of her files, which included a video of Simmons' birthday party in 2014. Fitz watched in awe and shock as he witnessed her submitted logs and images about the groundbreaking realities of the planet and that of Will Daniels.
After he had given the fixed phone to Simmons, Fitz questioned her about her entries, wondering about her state of mind as she placed them; Simmons, knowing that he was referring to her affirmations of love and wanting a family with him, assured him that she had full clarity when she made her statements. He then too watched the sun rise.
Continuing his research, Fitz noted to Lance Hunter that Daniels had a symbol on his uniform similar to one he had seen in the English castle, weeks ago. Hunter thought that NASA had sent Daniels through the Monolith, but Fitz gave a theory believing that an ancient order truly sent Daniels; Hunter dismissed Fitz's conspiracy theory as lunacy.
Continuing research into his theory, Fitz had scrolls and books brought to the lab. The agent moving the books dropped them, and Fitz angrily confronted him over his carelessness. Jemma Simmons calmed him down, before becoming angry with him when he mentioned bringing back Will Daniels. She returned to the lab, and Fitz followed her, asking her why she was angry at him. Simmons replied that she was angry with herself for bringing him into her search along with being angry with him for being so willing to bring back Daniels. Fitz retaliated, saying he was incredibly angry and sick, not at Simmons but at the cosmos, for keeping them apart. Though Simmons disagreed, Fitz listed all the obstacles to their relationship, culminating with Daniels. Fitz asked Simmons if she loved Daniels, to which Simmons hesitatingly answered yes. Fitz agreed and began listing all of Daniels' character traits, saying that he had done everything for Simmons. However, Simmons cut him off and reminded Fitz that he had jumped through a portal to rescue her. Fitz stared at Simmons for a second, then kissed her. Simmons kissed him back, but Fitz broke away and whispered that they were cursed before walking away. He was called back by Simmons when she noticed that a book that had fallen off the desk had opened to a page with a symbol similar to the modern HYDRA insignia. The two realized that HYDRA was behind Distant Star Pathfinder and had been sending people through the portal for centuries.
Fitz and Simmons revealed their research to the other agents, laying out paper with each insignia, beginning with the Distant Star Pathfinder logo and continuing to the HYDRA symbol. Their research showed that HYDRA was inside NASA and the Advanced Threat Containment Unit.
When Rosalind Price was killed by Grant Ward, Phil Coulson sent Simmons, Fitz, Luther Banks, and a team of agents to an abandoned Project Distant Star Pathfinder facility in search of clues to the Monolith. While there, Simmons expressed her belief that it was unlikely they would find anything, but Fitz replied that they still could find something to help them bring back Will Daniels. Simmons told him that they could not bring him back, since opening the portal was HYDRA's goal and could potentially allow them to bring back their leader. Though Fitz tried to protest, Simmons told him that it would be selfish to potentially allow HYDRA to achieve their goal, just to bring Daniels back. Before Fitz could answer, the two heard shots. Quickly turning, Simmons saw Banks shoot the other agents, then turn the gun on her and Fitz. Simmons watched as Fitz asked Banks not to shoot them; however, Banks managed to say it was not him before the gun floated out of his hand, turned, and shot Banks in the head. Simmons and Fitz watched as Giyera entered the room and ordered them to follow him.
Now captives of HYDRA, Simmons and Leo Fitz were taken to the same castle in England where S.H.I.E.L.D. rescued Simmons from Maveth. There, they discovered that Gideon Malick sought to use fragments of the Monolith to summon forth the hostile creature from Maveth; the creature was in fact an Inhuman of unspeakable power that HYDRA and its ancestors had long worshiped. Disgusted and horrified by the prospect, Simmons refused and attempted to attack Malick, but was restrained and tortured by Giyera and Grant Ward. Unable to stand hearing Jemma Simmons being tortured, Fitz agreed to enter the portal and guide HYDRA's team. Entering the portal chamber, Fitz saw Simmons restrained by Giyera. She broke free from his hold and ran to Fitz; when Giyera started after her, Fitz told him that the deal was off if he touched her. Simmons begged him not to go through, but Fitz assured her that the only thing he would bring back would be Will Daniels. Hugging Simmons, Fitz saw Grant Ward enter the chamber in full combat gear. Asking him what he was doing, Fitz learned that Ward was leading the HYDRA team. The portal opened and Fitz, Ward, and the other agents jumped through.
Once through the portal, the team began searching for It. Hiking up a rise, Fitz tried to distract Ward by showing him the program he was using to find the exit portal, before going for Ward's gun. However, Ward realized his intent and kicked Fitz down a ridge before following him down and threatening that Simmons would die if he did not return, and it would be Fitz's fault. One of Ward's soldiers called out for him to come and he walked away. Fitz followed him to the soldier, where he saw an old structure in the shape of HYDRA's symbol. Fitz continued on with the team.
Fitz realized that the area that they were walking through was familiar; looking around, he noticed a metal hatch in the ground. Knowing he had found the home of Will Daniels, Fitz entered the hatch, with a furious Ward following him. Once in the cave, Fitz found Daniels with an injured leg on his bed. Daniels sat up and questioningly recognized him; Fitz confirmed that it was him as Ward stormed in, angry that Fitz had entered the cave without permission. Fitz panicked as Ward threatened to shoot Daniels, hastily explaining that Daniels was to be their guide and he was the only way to find It. Ward noticed the insignia on Daniels' suit and agreed to take him, first offering Fitz the chance to shoot him. Fitz told Ward to grow up and once he had confirmed that Daniels could walk, the group left the cave.
Walking with Daniels, Fitz explained that Ward was part of an organization dedicated to bringing back their leader, It. Fitz listened as Daniels informed him that they were in the 'no fly zone'. Fitz listened as Ward asked Daniels what the structure they had seen was; Daniels told him that it was a shrine to It, and that It had lived there. Daniels formed a plan to escape from Ward and ordered Fitz to follow his lead. As they continued, a sandstorm began to form, and the team eventually had to shelter behind some rocks. Fitz watched as Daniels killed the two HYDRA agents sheltering with them, and he and Daniels crept away before Ward realized their escape.
Fitz and Daniels continued on towards the exit point. As they walked, Fitz saw an ancient city, and asked Daniels about it, asking why Simmons had not told him about it. Daniels replied that she had never seen it, and explained that there were nine such cities, and the inhabitants had torn each other apart. Suddenly, Daniels' leg gave out and he fell. Fitz ran to him and pulled the bandage away to try to assess the damage; he saw only bone and rotting flesh as he realized that what he thought was Will Daniels was in reality It, inhabiting Daniels' corpse. It began attacking Fitz, who held It off for a time, but was beaten back. Just as It was about to crush Fitz with a rock, It was shot by Phil Coulson.
Fitz got up and watched Coulson fight Ward, before realizing that It had also regained its feet and had begun walking towards the now-opened portal. Fitz found a gun and shot It again, but It continued on. Finally, Fitz discovered his flare gun and engulfed It in flames, finally stopping him. Realizing that the portal was about to close, Fitz screamed for Coulson. Fitz watched Coulson kill Ward, before both entered the portal and were rescued by Alphonso Mackenzie, back on Earth.
Reaching Zephyr One, Fitz watched Simmons search for Daniels, before realizing he was not there and turning. Fitz hugged Simmons, and shared a look with Coulson, knowing that Coulson had killed Ward in cold blood.
Back to Work
Missed By Simmons
- I miss you."
"Together. We're professional and matter of fact, and there's this chasm in the middle of the room of all these things.
- --Jemma Simmons and Leo Fitz
While he was in the lab, assisting Jemma Simmons, Phil Coulson asked Fitz to come with him. He asked Fitz's opinion on Lincoln Campbell, so Fitz replied that Campbell had helped Simmons understand the Inhumans' biology. Fitz also told Coulson that he felt guilty for what he had done to Will Daniels. Coulson explained that he had made the hard choice. Coulson then ordered Fitz to set up the Theta Brain-Wave Frequency Machine. At first, Fitz refused, but Coulson said that it was for Werner von Strucker, who might know where Gideon Malick was. Coulson eventually got the information. Later, Fitz finished working on Coulson's new robotic hand, as Simmons entered the lab and said that she missed him. Fitz was confused, but Simmons explained that she missed their partnership because of the recent events. Fitz told her that maybe there had been a way to save Daniels, but Simmons said that he was extraordinary, since he had killed Hive. Together they restored the moment they had met, reintroducing themselves in an attempt to start over.
- Creel's blood is protecting hers."
"A vaccine against Terrigenesis."
Fitz made a device for Phil Coulson that could replicate people's fingerprints. As he brought it to Zephyr One, he spoke with Lance Hunter about the Inhumans symposium. Later, Absorbing Man was brought to the Playground and put inside a Containment Module. Fitz and Jemma Simmons asked him how he had touched the Diviner without being killed, but he did not know. They decided to test his blood samples with Terrigenesis. The two showed Lincoln Campbell that Daisy Johnson's pre-Terrigenesis blood reacted to the Terrigen, but as they mixed it with Creel's blood, it broke down the Terrigenesis. They theorized that it could be a vaccine to Inhumans that were not yet transformed. Johnson entered the lab, shocked at the idea. Fitz and Simmons left the room to let her and Campbell talk.
Following the Attack on the ATCU Headquarters by the Watchdogs, Phil Coulson sent Fitz Daisy Johnson the the scene. Fitz discovered that the Watchdogs had use Nitramene to collapse the building. Johnson sent the information to Coulson, who suspected Felix Blake had to do with the incident. Fitz heard Johnson and Alphonso Mackenzie weather they should let her using her powers to interrogate members of the Watchdogs. Ftz then helped Johnson interrogating a Watchdog member by pointing a gun at him, despite his unwillingness. After he told them the location of the Watchdogs base, they went there. Fitz sent a D.W.A.R.F. to a barn where they saw Blake. However, one of the Watchdogs shot a Niteramene at Fitz's neck. Johnson could not defect it, so Fitz realized Blake had improved it. In a Containment Module, Fitz learned from the member how to defect it. After Johnson saved him, the member told them the Watchdogs were after Mackenzie.
Daisy Johnson saw a vision of the future from the Inhuman Charles Hinton. After she returned to the Playground, Johnson told the team she would fight HYDRA to rescue Hinton from them and Fitz and Jemma Simmons would hold hands as the snow falls. Johnson said they could change the future from happening, but Fitz explained to the team that time was an illusion of the fourth dimension, therefore the future could not be changed. Phil Coulson suggested they would send Melinda May to the mission.
Johnson gave details of the location of the battle to Fitz and Simmons, and they used S.H.I.E.L.D. services to find it. May entered the room and demeaned they would not use all of them. Simmons explained that she and May used some of the services to find Lash. Fitz joined Simmons, Lincoln Campbell and others as they began training to ensure Melinda May would undergo her mission as fast as possible in order to change the vision's outcome. Despite Fitz's doubts, Johnson made sure the room was laid out as accurately as possible to the vision she had had while Fitz and the other agents acted as the guards who needed to be taken out. Eventually May managed to beat the time limit.
They eventually found the location of the battle, which was owned by Transia Corporation. Coulson gave his last orders to May when suddenly the alarms in the base went off, telling them that there was an intruder. Andrew Garner was brought into the base and explained that Lash was taking over and he wanted to say goodbye to May.
May was ordered to stay behind so she could say goodbye to her ex-husband while Johnson went into the mission and Fitz managed to hack into Transia Corporation's CCTV feed. In Coulson's office they watched as they managed to hack into the Transia Corporation's CCTV feed. As they spotted Giyera on the feed, suddenly the video seemed to show Grant Ward in the building. Fitz claimed it was likely to be Hive.
They went to the building to save Johnson and find Ward. Fitz and Simmons stayed outside. Seeing no cloud in the sky, Fitz said that maybe Johnson had not seen the future. Suddenly, Fluorescent sparkles fell from the building's rooftop, so Fitz realized Johnson had not seen snow. Simmons said they supposed to hold hands now, so the two did it.
- You were left no choice on that planet. You did the right thing, but I crossed the line. Ward deserved to be punished, but no one deserves to have the life s..."
"No, he did deserve it. He did deserve to have his chest caved in no question.
- --Phil Coulson and Leo Fitz
Fitz, Jemma Simmons, Daisy Johnson and Alphonso Mackenzie examined skeletons sentenced from the skin by Hive. Fitz explained that Grant Ward's body was possessed by the Inhuman from Maveth. The team was called to Phil Coulson's office for a meeting where he explained that in order to find Hive, they would go to GT Agrochemical facility which had been raided by HYDRA. On Zephyr One, Fitz and Simmons explained to Coulson that Hive had created small organisms which had consumed the victims' flesh. As the team prepared to enter to facility and to face Giyera there, Fitz explained them his powers. Melinda May asked him about a room in the facility where she could defeat him.
After they kidnapped Giyera, Fitz found that the data of the facility had been moved to an oil field in Schoonebeek. Fitz found a frustrated Coulson. He asked him if he was fine, so Coulson explained that in contrast to the justified act against Hive Fitz had done on Maveth, he should not had kill Ward. Fitz tried to conform him by saying Ward had to die, but Coulson said that now he Ward was basically after him. Fitz then was near to the Containment Module where Giyera was inside it. Suddenly he noticed that one of the seat belt was missing a buckle. Giyera used it to escaped the module and Fitz set the alarm. He pointed a rifle at Giyera but the latter managed to take it. Fitz revealed it had no bullet so Giyera threw it towards Fitz but he missed. Mackenzie tried to beat he but he failed and Giyera managed to bring the plane to the oil field.
Like his best friend Jemma Simmons, Leo Fitz is known to be an attractive nerd on his profile for S.H.I.E.L.D., though he is somewhat socially awkward. Fitz also has a strange affinity for monkeys. He also has a great sense of humor, teasing Ward behind his back (in a mockery Southern accent), and planning to prank Skye. He is also a good actor, and easily impersonates an American tourist.
In spite of his lack of combat skills, Fitz impressed the more experienced Ward with his remarkable bravery and quick thinking during their mission together in South Ossetia. Fitz believes deeply in the friendships he creates: being upset when Skye appears to have been secretly working with Miles Lydon, actually crying when John Garrett revealed himself as HYDRA, as well as having a rare angry fit and emotional breakdown when Ward was revealed to be a murderer and a HYDRA mole. In return, Fitz is very loyal to his friends, is miserable when he was unable to save Skye from Quinn, and trusts Simmons with his life. Another instance of his loyalty was his refusal to serve Gonzales, deciding to leave rather than betray Coulson.
While Fitz is devastated at Ward's betrayal, he is the only one on the team that still insists that Ward is redeemable, as Fitz believes that people are never "born evil." He is the only one who still tries to reason with Ward and implores him to let Garrett die and abandon HYDRA. Despite that, Fitz later on became very bitter against Ward after he dropped him and Simmons into the ocean to die and for betraying the team, even going on to torture and later, attack him. However, Fitz is also very forgiving and understanding of others' problems, shown when he quickly forgives Skye for being so secretive about Miles Lydon, claiming that everyone "makes mistakes." He also instantly forgives Coulson for knocking him out with a punch, understanding the situation. As Simmons grows closer to Triplett, Fitz remains suspicious of him, though he does learn to trust him later on.
Fitz also tends to go through with his promises and threats: he promised Garrett that he would suffer for what he had done, and he (Fitz) plans to be a "very big part of that." By electrocuting and nearly assassinating Garrett shortly thereafter, Fitz manages to keep his word.
The brain damage Fitz suffered has caused him to become withdrawn after Simmons opted to be a part of an undercover mission. Fitz had her as an imaginary friend and frequently talked to her, claiming that those conversations calmed him. Billy Koenig had replaced him in many aspects, raising Fitz's jealousy. No one other than Skye and May interacted with him until Alphonso Mackenzie approached him, creating a new friendship between the two.
Powers and Abilities
Genius Level Intellect: Fitz has become a very well known agent in the S.H.I.E.L.D. tech community for his technological expertise. Grant Ward's attempt to kill him damaged his temporal lobe, and he displays aphasia as a result, a difficulty remembering or explaining words. However, this condition has not affected his intelligence, and Fitz continues being a genius.
Master Engineer: Fitz has designed and created many of the equipment commonly used by S.H.I.E.L.D. agents, including the Night-Night Guns and I.C.E.R.s, the Mouse Hole, the Magic Window. He has also created many of the tools used for analysis and scientific work, especially the D.W.A.R.F.s, the Golden Retrievers, the Full-Spectrum Goggles or the Magic Window. The sensitive nature of many mission has made him to develop devices against the clock that needed to be adapted to the parameters of each mission. His expertise also extends to artifacts of Asgardian origin greatly impressing Sif.
Due to his brain damage, Fitz suffered from hallucinations, affected speech and motor skills.
Equipment: None known.
Transportation: None known.
Weapons: None known.
- Leo Fitz is described as an attractive nerd and a weapon/tech specialist.
- Leo is real close to his teammate and friend Jemma Simmons. Their relationship is described as a sibling like relationship.
- He is a Level 5 Agent.
- Fitz and Simmons graduated from the S.H.I.E.L.D. Academy in 2004.
- Appearances of Leopold Fitz (Earth-1010)
- Character Gallery: Leopold Fitz (Earth-1010)
- Quotations by Leopold Fitz (Earth-1010)
Discover and Discuss
- Search News for: ·
Links and References