When Tony Stark (Robert Downey Jr.) tries to jumpstart a dormant peacekeeping program, things go awry and Earth's Mightiest Heroes, including Iron Man, Captain America (Chris Evans), Thor (Chris Hemsworth), The Incredible Hulk (Mark Ruffalo), Black Widow (Scarlett Johansson) and Hawkeye (Jeremy Renner), are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron (James Spader) emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure. Directed by Joss Whedon.