Justice League Unlimited

Season 3 Episode 10

Dark Heart

Aired Saturday 10:30 PM Dec 11, 2004 on Cartoon Network

Episode Fan Reviews (8)

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out of 10
172 votes
  • this is a great episode.

    this episode is about nano-tech robot aleins that can take over an entire planet are trying to take over earth but the justice league are going to stop them, but the nano-tech robot aliens are the size of rabbit's and every time you destroy one two more form, but the only way they can stop them is with the atoms help, this is a great episode.