Adventures of Superman #594
In "The Doomsday Protocol," Joe Casey and Mike Wieringo deliver a high-stakes showdown as Lex Luthor's Suicide Squad unleashes Doomsday to confront the cosmic menace Imperiex. With the fate of Earth hanging in the balance, Superman faces his most devastating challenge yet—only to be met by an arrival that redefines the meaning of destruction. Cover by Mike Wieringo and José Marzán Jr. captures the epic scale of a battle that begins with a desperate gamble and ends with a universe on the edge.
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As part of Luthor's Suicide Squad project, Doomsday is released to face the threat of Imperiex. But Imperiex himself finally arrives, incinerates Doomsday, and dispatches Superman.
Plot details indexed by the Grand Comics Database (CC BY-SA).