Two wannabes rig a fight with a large prize fighter to buy a car.

Undercover cop Nico Giraldi travels to New York and Las Vegas to find a crooked cop who gave his squadron back in Italy a bad name.

A black-out occurs during the meeting of a gang of criminals. When the light is back one of them is found killed with a stab on his back and all the clues point to a penniless man who had an argument with the victim a short time before the murder.

A rude Roman policeman Nico Giraldi and an English detective team up in search of a gang that has carried out an enormous fraud against the Lloyd's of London.

A gang of thieves are robbing luxury apartments in Rome, but after emptying the villa of the wealthy Mr. Douglas, the thieves are beginning to die.

An American narcotics agent is murdered in Italy. The head of the department decides to hire Larry Stanziani, 'The Cobra'. Larry, a former agent and now a third-rate private detective, uses the opportunity to get even with an old enemy, but soon he finds out he's facing a relentless organization

Paris, 1900: a couple are horribly murdered by a masked man with a metal claw who rips their hearts out. The sole survivor and witness to the massacre is a young girl. Twelve years later in Rome a new wax museum is opened, whose main attractions are lifelike recreations of gruesome murder scenes. A young man bets that he will spend the night in the museum but is found dead the morning after. Soon, people start disappearing from the streets of Rome and the wax museum halls begin filling with new figures...

In the final days of the Vietnam War, someone is killing the officers of the elite Cobra Force. Two undercover M.P.'s are assigned to the case. The trail leads from the streets of Saigon to the war zone.

Seeking the cure for cancer, a woman goes back to the island where her parents were killed, and accidentally raises the dead by angering a voodoo priest.

A commando rescues his squad leader from heroin smugglers in Burma.