Gotham City faces its greatest threat yet--an alien invasion! After failing to save the city on his own, the Batman learns that even the greatest heroes have to sometimes rely on help.

Writers:

, (as Doug Petrie)

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Cast

Episode credited cast:
Rino Romano ...
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Robin / Dick Grayson (voice)
Danielle Judovits ...
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Alfred (voice)
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Lucius Fox (voice)
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The Joker (voice)
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Storyline

Gotham City faces its greatest threat yet--an alien invasion! After failing to save the city on his own, the Batman learns that even the greatest heroes have to sometimes rely on help.

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Details

Release Date:

5 May 2007 (USA)  »

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Trivia

When the Martian Manhunter brings Batman to the Justice League satellite, an exterior shot reveals that from a certain angle, the top of the satellite resembles the Hall of Justice from the "Super Friends" cartoon. See more »

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