Florimond, a dangerous smuggler, and his mistress Viviane try in vain to transfer illegal precious stones. When Viviane gets to know young Théo, a naive young peasant, she immediately capitalizes on the encounter. Thanks to her charm, she seduces him into becoming her accomplice. And, naturally,...
Foreign spies are interested in plans for a device invented by a French aviator. They kidnap the young man but fail in their business thanks to the energy of his wife and the cunning of the mechanic.
A young customs officer is given an important mission: to investigate drug trafficking on the Belgian border. Incognito, he goes to the place where he easily spots the gangsters.
