Doomslayer believed the original Doomsday to be an infection, so it planned to destroy Earth, as it considered Earth to be ground zero for Doomsday's "infection". Superman and his friends escaped the ship with the original Doomsday and stopped the ship from crashing onto Earth, pushing it into Metropolis's bay. Afterward, Doomslayer attacked the city with the Doomsday clones, determined to erase all trace and knowledge of Doomsday from existence. The clones spread across the world, wreaking havoc, while Doomslayer's second plan was to entice the Doomsdays to reach the Earth's core so that he could expand the universe inside the ship's tower and destroy the planet from within, thus erasing all knowledge of Doomsday from the universe.