Universe in a big bang event, and recreate it with himself as the only superhero. Superboy-Prime is slowed down by a 300-mile thick wall of willpower created by the Green Lantern Corps, but he kills thirty-two Green Lanterns before Kal-L and Kal-El carry him toward what is left of Krypton. It is essentially a huge cloud of kryptonite. The Supermen fly Superboy through Krypton's red sun, Rao, destroying his armor and causing all three Kryptonians' powers to diminish. Falling to the sentient planet (and Green Lantern Corps member) Mogo, they fight. Kal-El finally knocks Superboy-Prime out and the older Superman Kal-L dies of his injuries in the arms of his cousin, Power Girl. Back on Earth, Batman, struggling with Superboy's death and Nightwing's severe injuries sustained during the Metropolis battle, contemplates shooting Alex. Batman is dissuaded by Wonder Woman. Alex manages to escape. Wonder Woman, Batman, and Superman later meet up in Gotham City. Wonder Woman plans to find out who she is. Batman plans a similar journey of self-discovery, revisiting the training of his youth, this time with Dick Grayson, now healthier, and with Tim Drake joining him. Superman retires from super heroics until his powers return, focusing his career as a journalist in the meantime. Hiding in an alley in Gotham City and making new plans, Alexander Luthor is found by Lex Luthor and the Joker. The Joker mutilates Alexander by spraying acid onto his face, then electrifies it, and finally, kills Alexander by shooting him as Lex mocks him for making mistakes including not letting the Joker play in the Secret Society and underestimating Lex. The Green Lantern Corps imprison Superboy-Prime inside a red Sun-Eater. The series ends with him carving an S into his chest with his bare hands and declaring that he has escaped from worse prisons than this. Collected editions Hardcover revisions The hardcover collecting all seven issues of Infinite Crisis included changes in coloring, as well as, more significantly, alterations in dialogue, most of which relate to hints to the re-emergence of the DC Multiverse. Also changed is the two-page spread near the end of the book, where a new George Pérez image is substituted. Four additional pages of art by Phil Jimenez were added, who also illustrated new cover art for the dust jacket of hardcover collection. An interview section included as an afterword explains the reasoning behind some of these alterations.