Before he is murdered, a spy passes on a jewel to the attractive Marie-Chantal. From then on, she is hunted by Russian and American spies and above all by the sinister Dr. Kha. Paco, a Spaniard, comes to her aid and rescues her from the most terrifying situations.

A clever fellow proves himself smarter than the gangsters who would exploit him. The trouble begins in Paris when the vacationing hero accidentally gets into an auto accident with a smuggler. The crook is most apologetic for the mishap and kindly offers to let him drive his Cadillac to Bordeaux and continue with his holiday. The poor traveler doesn't know that the vehicle is a black market on wheels carrying everything from jewels to heroine. He is pursued by the smuggler and by a rival gang. He is so busy enjoying himself that he doesn't bother to look back at the gun battles raging behind him.