3 Season
39 Episode
Justice League Unlimited - Season 1 Episode 10 Dark Heart (2006)
Most of the League battles with powerful alien nanotechnology but, realize that the waves of self-replicating robots cannot be simply destroyed. The diminutive Atom shrinks himself to stop the robots from the inside.
- Country : United States of America
- Genre : Animation, Action & Adventure, Sci-Fi & Fantasy, Kids
- Studio : Cartoon Network
- Director :
- Cast : Kevin Conroy, George Newbern, Susan Eisenberg, Carl Lumbly, Phil LaMarr