He first appears leading HYDRA forces into fighting Captain America. With the help of M.O.D.O.K., Red Skull manages to capture Captain America and bring him to his HYDRA base in Antarctica. The reason he had captured his own nemesis was because Red Skull was dying from the side effects of the Super-Soldier Serum attempt that was used on him, so he decided to take Captain America's youthful body and leave Cap to die in his aging body. The experiment was a success, and Red Skull (in Captain America's body) subdued Iron Man. After being freed from the machine, Captain America used Red Skull's body to fight him and the HYDRA soldiers until Falcon manages to switch their bodies back. Before escaping with MODOK, Red Skull managed to steal Iron Man's armor as an alternative to his survival. In "The Avengers Initiative, Pt. 2", Red Skull modifies the Iron Man armor to his design, renaming himself as the Iron Skull. He and MODOK use microbots to cause the Avengers members to fight each other as a diversion so that he can blow up the Arc Reactor in Avengers Mansion. Iron Man manages to thwart the plans. When the Avengers use different tactics to take down Red Skull, Red Skull gets away. While on his submarine, Red Skull sends a message to other villains to join his recently-founded group, the Cabal, in order to combat the Avengers (this message was also intercepted by S.H.I.E.L.D.). He will not hesitate to betray his recently formed team at the end of the first season to then end up deprived of his armor and projected to the Sanctuary where he meets Thanos.