The ambitious police officer Cruchot is transferred to St. Tropez. He’s struggling with crimes such as persistent nude swimming, but even more with his teenage daughter, who’s trying to impress her rich friends by telling them her father was a millionaire and owned a yacht in the harbor.

Robin Bellefeuille, postman in Saint-Tropez and his friend gendarme Ficelle, have well-established ecological principles. When they learn about the future construction of a casino in town, they do everything to stop the project