Sukru runs a trading company to front a drug smuggling operation, using carrier pigeons to carry the drugs.

An ex-con deported to Italy after serving a prison sentence in the U.S.A., has invited a group of protection racketeers to join him in Naples.

The body of a merchant seaman, reported lost overboard in the Mediterranean, is washed up on the south coast of England with a bullet in his head.

A man extorts a large sum of money from an insurance company. Interpol begin a tireless operation to track the man through countries that don't have Interpol agreements.

Gangster Mike Marko amassed a fortune from the rackets, but did not live to spend it. Duval is on the trail of his right-hand man, Pavone.

Duval agrees to help his old friend, Bernarde, the owner of a Paris salon, to keep his latest creations under wraps until the big fashion show, but Harry Grayson and Mamie Bryant have other ideas.