Raoul Leduc is a police inspector trailing a spy who plots to kidnap an important American atomic scientist. Joe Victor a gangster who is hired to carry out the abduction, balks when he learns what is at stake and helps Leduc out instead.

Several murders of nuclear scientists, that baffles Scotland Yard, occur in London around the same time that Bill Locklin, a special officer from the United States State Department, arrives to oversee the transfer of Professor Leon Dushenko, a Russian scientist who has fled the USSR. An attempt on Dushenko's life is made with a monkey's paw-print found at the scene.

A hard-nosed Chicago cop is sent to London to bring back an American mobster being held for extradition. Brannigan in his Irish-American way brings American law to the people of Scotland Yard but has to contend with a stuffy old London first.

Eddie Darrow, seeking a mobster's widow in Macao, gets involved in a casino owner's affairs.

Masaki, a baseball player and gas-station attendant, gets into trouble with the local Yakuza and goes to Okinawa to get a gun to defend himself. There he meets Uehara, a tough gangster, who is in serious debt to the yakuza and planning revenge.

A meek undertaker becomes trapped in a violent world when a gangster enlists him to dispose of a growing number of corpses.

G-Man Jeff Crane poses as a crook to infiltrate the notorious Purple Gang, a band of hoodlums which preys upon other hoodlums. Orchestrating the jailbreak of the gang's leader, Crane joins him in a Dillinger-like flight across the country.

Lieutenant Commander John Byrne of the Naval Secret Service and his partner Pvt. Bill Riggers chase criminal Dr. Sin Fang, who is desperate to find a lost sacred seal. (The fifth and only surviving episode of a six-part serial about an evil mastermind inspired on Sax Rohmer's Dr. Fu Manchu.)

During World War II, an American serviceman in London decides to impress his English girlfriend by acting as an American gangster, which soon turns deadly.

Gentleman gangster Max and his partner, Riton, pull off their last, most successful heist and find themselves comfortable enough to retire in the style they enjoy. However, Max confides the details of the theft to his younger mistress, Josey -- who has secretly taken up with ambitious young rival gangster Angelo. Angelo then has Riton kidnapped and demands the stash of gold as ransom, which threatens Max's dreams of the perfect retirement.

Five troubled teens, abandoned by society and family, form a bond in a world of violence, drugs, and self-destruction, facing harsh realities of modern Singapore.

A small-time hood shoots his way to the top, but how long can he stay there?