BEFORE READING THIS SERIES, MAKE SURE TO READ "CRISIS ON MULTIPLE EARTHS OMNIBUS", AVAILABLE ON READCOMICS. A mysterious being known as the Anti-Monitor has begun a crusade across the multiverse to bring about the end of all existence. As alternate Earths are systematically destroyed, the Monitor quickly assembles a team of super-heroes from across time and space to battle his counterpart and stop the destruction. DC's greatest heroes, including Superman, Batman, Wonder Woman, Green Lantern, and Aquaman, assemble to stop the menace, but as they watch both the Flash and Supergirl die in battle, they begin to wonder if even all of the heroes in the world can stop this destructive force. Celebrating it's 50 year run, DC Comics created Crisis on Infinite Earths to standardize continuity and end the Silver Age of comics. (All deaths in this event are PERMANENT and affect continuity of future publications.)