Until now, the Justice League has been a loose association of superpowered individuals. But when they are swept away to Warworld, a place of unending brutal gladiatorial combat, Batman, Superman, ...

When the Flash finds himself dropped into the middle of World War II, he joins forces with Wonder Woman and her top-secret team known as the Justice Society of America.

Superman and Supergirl take on the cybernetic being known as Brainiac, who boasts that he possesses "the knowledge and strength of 10,000 worlds."

While on a dangerous mission to recover the historic Judas Chalice, Flynn is saved by Simone. But when double-crossed by a respected professor and ambushed by a ruthless gang, Flynn realizes ...