An adventurer pursues a river of gems through caverns of mystery. He encounters deadly snakes, buried-alive Nazis and brutal murderers. The prize is a river of diamonds, but the price could be a violent sudden death.

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 warriors.

An American ninja's wife is held hostage by a sadistic Nazi chemist on an Asian island. He teams up with an African-American ninja to rescue her.

A drifter and his pet puma stand up against a motorcycle gang in a small American town.

Kickboxing champ Rick Quinn decides to retire from the ring, but his main adversary, Denard, wants him to fight again and murders Quinn's wife. Quinn suspects Denard, but can't do anything. Three month later, Quinn is jailed after a drunken bar brawl; a rich man named Le Braque bails him out and asks him to fight for him.

A young journalist and his two travel mates, both professors, embark on an expedition to return to a lost world of dinosaurs and primitive men.

A Tennessee sheriff and lawyer want a jailed drifter to assassinate a mayoral candidate.

A group of men are told that they have won an "erotic vacation" at a fantasy island. In reality, they are being lured to the island by women they have wronged, and once there they are captured and set loose on the island to be hunted down.

Two LA cops, Julie and Jay, must return Marsalas to Africa to stand trial as the chief state witness against international villain Alex Gatelee. Gatelee, into everything from gold smuggling to female slave trade, hijacks the party. In a vicious shoot out Julie and Jay overcome Gatelee's men. Gatelee then has Julie kidnapped from one of his nightclubs. He tries to use Julie as bait to get Jay to hand over Marsalas in exchange for Julie...

In 1879, the British suffer a great loss at the Battle of Isandlwana due to incompetent leadership.