A fictionalized account of Czech soldiers who fought for the French Foreign Legion in Vietnam.

Jean-Paul is a Frenchman who yearns to live in communist Czechoslovakia. His wish is granted when, mistaken as a masseur of a French boating team, he manages to elude the democratic authorities long enough to scamper over the Czech border.

Philippe Marcillac grew up in Sète, where he specialized in pranks of dubious taste. One day, as a teenager, he organizes a party in an abandoned villa. Philipe finds himself alone with Marie-Titite, who advises him to restart his life on a more serious footing.

After failing to carry out an urgent repair to the car of two German tourists, mechanic Robert has a crisis of conscience. Accidents loom at every turn of the wheel. Robert finally alerts the police, and the breathless pursuit of the Mercedes begins, turning into a thriller that ends to everyone's satisfaction.