Although they managed to defeat him, the alien sentience had already miniaturized and bottled the city of Metropolis and took it to his ship in space. Superman travels to the ship to find many alien bottled cities, Kandor included. The alien identifies himself as a being from the planet Colu where he was known as C.O.M.P.U.T.O and on Krypton he was called Brainiac 1.0. He claims that, without Superman and the ship that brought him to Earth, his Kryptonian collection is incomplete. The alien intelligence demands Superman make a choice: the intelligence will disable life support in both the Kandor and Metropolis bottles, and Superman must choose which city to save using indestructible Kryptonian armor found on the ship.