Someone's bumping off the Mafia bosses of Salerno and it's down to the newly elected leader to figure out who - and rescue his son in the process.

Montano's corpse is found after being kidnapped by Maurice. The police think then to use the same ways criminals use and to infiltrate Tony Lo Bianco in the gang. Tony is a former FBI agent sent back to Italy for many crimes. Police Superintendent Ferrari disagrees but Tony begins his operations and meets Paulette, the Maurice's daughter. Tony and Paulette find out that perhaps Maurice is not responsible for Montano's death and they discover they have to start a real battle to save their lives.

In Naples, gangsters have seized the American ambassador. The authorities respond by assembling a special squad; to command it is Borri, a former commissioner who has a personal vendetta against the racket.

The town drunk of Gallatin, Missouri is former outlaw Franky James, brother of Jesse James. He is reformed by a woman, a young boy and a dog. He helps rid the town of corrupt town boss Mr. Morgan.

Convict Roberto murders a guard and escapes from jail with his cellmate. Once free he joins a group of gangsters and becomes a professional hitman. The gang abduct a young woman and when one them attacks her, Roberto shoots him and takes her to an abandoned farm house…..

A drug deal goes bad and the heroin is stolen. One mob boss doesn't have his drugs and the other doesn't get his money. People are going to die until they discover who double-crossed them. Into this backdrop, Inspector Dario Mauri arrives from Milan to help clean-up Naples. His mission – find the drugs and stop the killing.