Hawaii - the last outpost of civilization on Earth has been captured by demons, traitors, and nightmarish creatures straight from hell. Humanity seems doomed to a bloody end. Hawaii then receives a message from the allies claiming that they are on our side. Our last chance: to make contact. The only person for this job is Corporal Flynn Taggart, US Marine Corps - "Fly" for his own. He fought against the demons when they entered through the gate at the Phobos base. Now Fly will have to complete a more difficult task: return to Phobos - and make his way through the demons in order to contact humanity for the sake of salvation...