
On a remote Caribbean island, Army Ranger Joe Armstrong investigates the disappearance of several marines, which leads him to The Lion, a super-criminal who has kidnapped a local scientist and mass-produced an army of mutant Ninja...

Two teenagers notice a sudden change in their fellow students. No one is able to explain this zombie-like behavior which, at the command of an unseen alien, makes them punish transgressors with merciless violence.