Tony Stark creates the Ultron Program to protect the world, but when the peacekeeping program becomes hostile, The Avengers go into action to try and defeat a virtually impossible enemy together. As the villainous Ultron 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. When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth�s Mightiest Heroes are put to the ultimate test as the fate of the planet hangs in the balance.