The Marvel superheroes reunite to take on an insane sentient robot bent on destroying mankind!
With SHIELD gone and the Avengers needing a rest from saving the world, ace inventor Tony Stark designs a peacekeeping robot, Ultron. But when Ultron decides that humans are the enemy, he begins planning to wipe them off the face of the Earth. To stop Ultron, Tony Stark must reconvene the Avengers, as they face their greatest foe. Iron Man (Robert Downey Jr), Captain America (Chris Evans), The Hulk (Mark Ruffalo), Hawkeye (Jeremy Renner), Black Widow (Scarlett Johansson) and Thor (Chris Hemsworth) return for Joss Whedon's thrilling, action-packed follow-up to mega-hit Avengers Assemble. Joining the star-heavy cast are James Spader (who voices the villainous Ultron), plus Elizabeth Olsen as Wanda Maximoff/Scarlet Witch, Aaron Taylor-Johnson as Pietro Maximoff/Quicksilver and Paul Bettany as The Vision. Excitingly, the storyline also looks ahead to phase III of the Marvel Cinematic Universe, as the tensions between Iron Man, Captain America and Hulk escalates into all-out war.