The Avengers: Earth's Mightiest Heroes S1E23 backdrop
The Avengers: Earth's Mightiest Heroes poster

The Avengers: Earth's Mightiest Heroes (2010)

S1E23 The Ultron Imperative

Jun 05, 2011 Season 1 Episode 23 Action & Adventure, Animation, Sci-Fi & Fantasy, Family

With Thor unaccounted for and Captain America recovering in the hospital, the Avengers face a daunting challenge: they must thwart Ultron's plan to eradicate what he deems the most imperfect beings on the planet—humans.

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