The evil General Morden and his rebel army has launched a coup d’état on the world’s governments, and all attempts by the armies of the various countries to curtail his growing power fail. His most recent attack has given him access to a new form of all-terrain combat tank dubbed “Metal Slug”. In a last effort to stop Morden, Cpt. Marco Rossi and Lt. Tarma Roving of the Peregrine Falcon Strike Force are sent to locate and eliminate his powerbase, as well as reclaim or destroy any Metal Slugs they can find so as to keep the technology out of Morden’s hands.