Superman: Last Stand of New Krypton the destruction, Zod rallies his remaining Kryptonian forces and declares war on the planet Earth (which concludes in ""). Meanwhile, the time traveling Legionaires (specifically Mon-El) return all the shrunken cities captured from Brainiac's ship to their predestined home worlds. Superman: Last Stand of New Krypton "Superman: Last Stand of New Krypton" is a 2010 crossover story arc in the various Superman comic book series published by DC Comics. It follows the events from "World of New Krypton" and leads directly into "". In this story arc, Superman and the Kryptonians defend their planet of New Krypton from an invasion
Superman: Secret Origin an enemy. Superman leaves anyway, and Sam orders the Army to attack. The soldiers do little to Superman, but John, in the Metallo suit, manages to weaken him by exposing him to the kryptonite. Ricocheting bullets hit the kryptonite, which explodes and injures John and allows Superman to escape. Sam and his troops arrive at the "Daily Planet", and orders it shut down until they can get definitive answers about Superman. Lex takes John into surgery and replaces his heart with a kryptonite generator, turning him into Metallo. Sam reveals to Lois, Perry, and the "Daily Planet" staff that Superman