The Avengers: Earth's Mightiest Heroes

S1 E1

The Avengers: Earth's Mightiest Heroes — Season 1, Episode 23: The Ultron Imperative

Action & Adventure, Animation, Sci-Fi & Fantasy, Family25 min2 seasons, 52 episodes8.2/10

Episode synopsis

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.

About The Avengers: Earth's Mightiest Heroes

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.

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