Ultimates 4

Ultimates 4 is the fourth installment of the Ultimates series.

Plot
Taking place several years after the events of the New Ultimates story, scientist Eric O'Grady has invented a new super-soldier serum. He tests it out on himself and ends up shrinking in size. He finds a scientist named Calvin Zabo and has him find a cure. It doesn't work and it enrages O'Grady, who gets so angry he shoots a blast of energy from his mind and it knocks Calvin backwards into several beakers full of chemicals. They spill on Calvin, and, ashamed of himself, Eric runs off. He ends up at a broken bridge, and attempts to jump across. He doesn't land, he just flies into the air. He decides to use his powers for good in order to redeem himself. He becomes a super-hero, then chooses the name Yellowjacket II because of his powers and starts fighting crime. He also learns how to revert back to normal size. He attracts attention from S.H.I.E.L.D., who try to recruit him. He refuses as he doesn't want anybody to learn his true identity, no matter what. When he realizes S.H.I.E.L.D. has been watching him, he is enraged and attacks the S.H.I.E.L.D. Helli-Carrier. Out of control, who does not listen to any S.H.I.E..L.D. agents, so they send a special, unnamed super-hero team to defeat him. The team (Mockingbird, Quasar, Tigra, Scarlet Spider) attacks Yellowjacket, and they knock him to the ground. He wakes up, and realizes he just lost control again, then he remembers Calvin Zabo and wonders what happened to him. He returns to Zabo's lab, being chased by Mockingbird and her team. He sees Zabo is gone, and is suddenly tackled by Scarlet Spider. He blasts Scarlet Spider in the face, then escapes. He jumps out a window and sees nothing. Suddenly, Quasar and Tigra attack him, then he shrinks down again to escape. He flies to the S.H.I.E.L.D. Helli-Carrier to tell S.H.I.E.L.D. something might be wrong. He tells them the whole story from him shrinking down to him attacking S.H.I.E.L.D., then they help him search for Zabo. When S.H.I.E.L.D. thinks they might've found Zabo, then send Yellowjacket and the other super-heroes to investigate. There search brings them to an empty warehouse. They look around until suddenly, a horribly mutated Calvin Zabo bursts out of the ground and attacks Yellowjacket for revenge. The team battle Zabo, and the fight leads them all to Zabo's underground lair. Zabo kills and eats Scarlet Spider, then attacks the rest of the team. He is winning until Yellowjacket builds up enough rage to fire a huge blast into Zabo's nose, blowing him up. They return to the S.H.I.E.L.D. Helli-Carrier, and when agent Maria Hill asks them what there official team-name is, Yellowjacket tells them there name is the Ultimates.

Sequels
Return of the Ultimates is a sequel to this story.