Alexandre Luthor, una versión heróica de Lex Luthor de un universo alterno aparece para reclutar a la Liga de la Justicia para salvar su Tierra del Sindicato del Crimen, una versión maléfica de la Liga. Esto desata la máxima batalla del bien contra el mal en una guerra que amenaza ambos planetas y, a través de un sinistro plan ideado por la contraparte maligna de Batman, Owlman, pone en peligro todo el balance de la existencia.
Personalmente no me interesa demasiado, pero igual estoy buscando links decentes de descarga...Justice League: Crisis on Two Earths is an original direct-to-video animated film released on February 23, 2010. It is based on the abandoned direct to video feature, Justice League: Worlds Collide, which was intended as a bridge between the then-concluding Justice League series and its then forthcoming sequel series Justice League Unlimited. The movie project was shelved because of insufficient staff to produce the movie and the TV show simultaneously.[2] Crisis on Two Earths was reworked from the Worlds Collide script to remove references to the TV series' continuity.[3]
The premise of "Crisis on Two Earths" is borrowed from the 1964 Gardner Fox-scripted Justice League of America #29–30 as well as the 1999 Grant Morrison JLA: Earth 2 graphic novel, with a heroic Lex Luthor from an alternate universe coming to the Justice League's universe for help against the Crime Syndicate, but it is not an adaptation of either story. The film is the seventh in the line of the DC Universe Original Animated Movies line released by Warner Premiere and Warner Bros. Animation. The film is not a DCAU production in any way, nor is it connected in any way to the previously released Justice League animated film; Justice League: The New Frontier.
The DVD also includes an animated short featuring Spectre.