"The Avengers: Earth's Mightiest Heroes!," an all-new animated series featuring the best of the best in the Marvel Universe, premieres Wednesday, October 20 (8:30 p.m., ET/PT) on Disney XD. Produced by Marvel Animation, the series stars the world's greatest heroes--Iron Man, Thor, Captain America, The Hulk, Ant-Man/Giant Man and Wasp--who form the Avengers, a team assembled when the powers of a single hero are not enough to save the world. less