When Tony Stark (Robert Downey Jr.) and Hank Pym (Ewan McGregor) jump-starts a dormant peacekeeping program, things go terribly awry, forcing them, the other
and new members of Avengers to assemble, the Fantastic Four and and the Mutants join along with them for their lives as well. As the fate of Earth hangs in the balance, the team is put to the ultimate test as they battle Ultron, a technological terror hell-bent on human extinction.