Axon Rey (Mirko 'Cro Cop' Filipovi') is a heavily decorated war hero and former tactical police officer who has been recruited by a covert government organization to fight enemies of the State. Schooled in the martial arts and the latest high-tech weapons, Rey, now code named Sphinx, is an elite member of the Sanction Division of SATO (State Anti-Terrorist Organization), a clandestine collective of assassins under the direct control of SIN (State Intelligence Network). Sphinx failed his last assassination mission. Normally, the state dealt with such a failure easily: it executed the executioner. Since Sphinx is their top assassin, his controller, Janus, decided not to eliminate him, immediately. He sends him to a rehabilitation island called Gulag 7 where Sphinx must face 5 opponents: other government operatives who have been sent to the island for various reasons. Refusal to fight means death. Now, he must fight his way off the island. It's kill or be killed...