Adventure sequel set after the events of 'Superman II'. After eliminating General Zod and the other Kryptonian arch-villains, Ursa and Non, Superman (Brandon Routh) leaves Earth to search for his former home planet, Krypton. When he arrives he finds nothing but remnants and returns to Earth. Upon his return, he finds a Metropolis that doesn't need him anymore. Lois Lane (Kate Bosworth) is engaged to a relative of his boss (James Marsden), and to make matters worse, his arch-nemesis Lex Luthor (Kevin Spacey) has contrived a plot to build a continent using the crystals of Krypton that will wipe out most of North America. Superman must again race against time to stop the psychopathic Luthor before it's too late.