Superman, Batman, Green Lantern, Flash, Wonder Woman, and the Martian Manhunter find themselves up against a new, deadly Injustice Gang led by Lex Luthor. With the addition of Prometheus, the man who almost single-handedly defeated the JLA, as well as the General and Queen Bee, it looks as if the Justice League may lose even if they win. Also: The International Ultramarine Corps, a super-team from around the globe, is attacked by the hyperintelligent, evil Gorilla Grodd and his guerilla gorilla militia. And, in the original graphic novel JLA: EARTH II, Ultraman, Owlman, Power Ring, and Johnny Quick rule an alternate earth without mercy or opposition. But their own personal utopia is threatened by the sudden arrival of appearance of Superman, Batman and the others in the Justice League. Realties clash as the Justice League travels to an alternate reality to face off against distorted mirror images of themselves.