After a Super Adaptoid breaks into the S.H.I.E.L.D. Helicarrier, it fakes its destruction. S.H.I.E.L.D and the superheroes enlist recruits to help determine what was stolen before Hydra and AIM can team up to take over the world.
Bruce Banner, a scientist on the run from the U.S. Government, must find a cure for the monster he emerges whenever he loses his temper. However, Banner then must fight a soldier who unleashes himself as a threat stronger than he.