After the Joker fails to defeat Superman and Batman, Lex Luthor tries to withdraw from the deal by killing the clown. This fails and leads instead to the Joker and Harley Quinn trying to take revenge on him by destroying Metropolis in a giant wing, while he uses the other half of the Kryptonite to try to stop Superman. It is ultimately up to the Man of Steel and the Dark Knight to stop this madness.
Guest Cast

Clancy Brown
voices Lex Luthor
Joseph Bologna
voices Dan Turpin
George Dzundza
voices Perry White
Lisa Edelstein
voices Mercy Graves
Efrem Zimbalist, Jr.
voices Alfred
Mark Hamill
voices The Joker
Arleen Sorkin
voices Harley Quinn
Peter Renaday
voices Captain
Lauren Tom
voices Angela ChenCast Appearances

Tim Daly
voices Superman / Clark Kent
Dana Delany
voices Lois Lane
Kevin Conroy
voices BatmanEpisode Discussion
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