The In Blackest Day Part One wiki last edited by pikahyper on 11/24/13 07:21AM View full history

One of the most popular episodes of the Batman Beyond cartoon show featured a futuristic version of the JLA -- the Justice League Unlimited -- and now they appear for the first time in a comic book. Batman teams up with the JLU in a high-voltage adventure as they battle a new villain called Blacklight.

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