A top undercover cop finds and arrests a series of purse snatchers until he discovers an American at the top of an evil ring of thieves.

Undercover cop Nico Giraldi is once again transformed, now as a trucker in a criminal gang.

While keeping an eye on his small time crook brother in law, Inspector Nico Giraldi gets involved in a murder case set in the world of Formula One racing. Giraldi is suspended for trying to cover up for his brother in law and becomes afraid his wife and son may be targeted next. Therefore he calls in the help of his childhood friend and chief informant, Venticello.

A former hitman is blackmailed into doing one more job. But the hit doesn't go as planned and he winds up with the police and a gang of Chinese hitmen hunting him down. A beautiful young woman helps to hide him until he can figure out a way to elude his pursuers.

A vengeful criminal targets the inspector who put him away, but the inspector survives and fakes his death. Ignoring orders to flee, he sets out to bring the fugitive back to justice.

Passionate rock'n roll dancer, Rodolfo has his partner Ornella as a partner. Frozen by the frivolous behavior of the boy, however, the young girl no longer wants to learn to dance with him. Finally, when Rodolfo had lost all hope of replacing it, Ornella, who has meanwhile accepted the court of a ballroom impresario, returns to her decision.

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.

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.

The old Emir of the Qudmar discovers he has a natural son in Italy. Secret agents and oil companies involve the man, an aspiring gas station, in the fight for the succession to the emirate.