About Ultimate Avengers
In the last days of World War II in the European Theatre, Steve Rogers/Captain America, a U.S. soldier created with the "Super-Soldier Serum", prevents a missile launch by Nazis, which are soon revealed are shape-shifting extraterrestrials led by one taking the form of SS officer Herr Kleiser. The missile explosion, however, sends Rogers into a catatonic state, and he falls into the icy waters of the North Atlantic, presumed dead. In the present day, Captain America is found and revived by a S.H.I.E.L.D. team led by General Nick Fury. Also present are Bruce Banner and his girlfriend Betty Ross, who lead a team of government scientists working to recreate the Super-Soldier Serum in order to try and stop the real power that backed the Nazis - the alien Chitauri. Banner replaces Hank Pym in the project to recreate the serum. Pym leaves the project along with his wife Janet. Banner thinks the super soldier serum is the key to him controlling the Hulk. And he without anyone else's knowledge uses his blood to try to create a cure and has no candidates for the rebirth procedure.
A Chitauri attack forces Nick Fury's superiors to order the creation of "Project Avenger", which involves the formation of a team of superhumans. Fury tries to recruit - with mixed success - Giant-Man, Wasp, Iron Man, Thor and the Black Widow - and after several setbacks the team unite to fight the Chitauri. Although successful, the team must then battle an enraged Hulk, as Banner releases his alter ego to aid in the battle. The team managed to eventually distract the Hulk long enough for Betty to calm him, and Banner is then incarcerated. The heroes then celebrate their success.