Alexander Luthor, of an Earth from an anti-matter universe, has arrived on Earth-1 to ask the Justice League for their assistance. He would like them to defeat and imprison the Crime Syndicate of Amerika, who have utterly destroyed and taken political control of his world.
Note: Alexander Luthor, Lois Lane, Thomas Wayne, Thomas Wayne II, Cat Grant, Jimmy Olsen, Johnny Quick, Jimmy Olsen, James Gordon and Brainiac all are from the Anti-Matter Earth.