When Tony Stark and Bruce Banner try to jump-start a dormant peacekeeping program called Ultron, things go horribly wrong and it's up to Earth's Mightiest Heroes to stop the villainous Ultron from enacting his terrible plans.
Director: Joss Whedon
Stars: Robert Downey Jr., Chris Evans, Mark Ruffalo
Stars: Robert Downey Jr., Chris Evans, Mark Ruffalo