Émilien (Frédéric Diefenthal) is a young bumbling police inspector who lives with his widowed mother, and has just failed his 8th driver's test. No one takes him seriously at work, including police sergeant Petra (Emma Sjöberg), towards whom he harbors an unrequited crush. Commissioner Gibert (Bernard Farcy) soon briefs the officers on a new case: a German gang that has successfully committed a series of high profile robberies throughout Europe, and has now arrived in Marseille. The gang is known for their efficiency, skilled driving, and their use of red Mercedes-Benz 500E cars as escape vehicles. Anticipating the gang's next move, Gibert places police officers around the targeted bank. After the robbers enter the bank, Émilien accidentally causes a multi-vehicle collision and a gun fight with the French Minister's escort convoy, allowing the Germans to escape.