The Avengers: Earth's Mightiest Heroes
tv show

52 total episodes
-
2 seasons
First Aired October 20, 2010
Overview
The most powerful villains on the planet escape from prison. However, none of the superheroes can stop them without help, not even S.H.I.E.L.D. The Avengers then join forces to fight evil, and discover that as a group they are stronger.

The Ultron Imperative
Season 1 - Episode 23 - 0h 25m
Air Date
June 05, 2011
Overview
Despite Thor going missing and Captain America ending up in the hospital, the Avengers must stop Ultron from eliminating the world's most flawed creatures-humanity.