Every six years, an ancient order of jiu-jitsu fighters joins forces to battle a vicious race of alien invaders. But when a celebrated war hero goes down in defeat, the fate of the planet and mankind hangs in the balance.

A big-game hunter for zoos who has booked passage on a Greek shipping freighter with a fresh haul of exotic and deadly animals from the Amazon, including a rare white Jaguar - along with a political assassin being extradited to the U.S in secret. Two days into the journey, the assassin escapes and releases the captive animals, throwing the ship into chaos.