Brainiac returns to invade Earth with his ultimate weapon, Warworld, a planet-sized satellite built for destruction. With the help of super-powered friends like Wonder Woman, The Flash, Green Lantern and many more, Superman must lead the attack on Brainiac and protect Earth! Collects ACTION COMICS #474-475, SUPERMAN: MAN OF STEEL #9-10, ADVENTURES OF SUPERMAN #488-489, SUPERMAN #66.