奎萨（居伊·格罗索 Guy Grosso 饰）将自己的一生都献给了警察这份他深深热爱的职业，然而，再能干的警察也要面临退休的这一天。退休在家后的每一天对于奎萨来说都无异于是一场折磨，他深居简出脾气爆炸，情绪濒临抑郁的边缘。
就在这个节骨眼上，奎萨的老朋友热贝尔（路易·德·菲耐斯 Louis de Funès 饰）和托利威尔（米歇尔·莫多 Michel Modo 饰）出现在了奎萨的面前，他们带来了一个喜忧参半的消息——他们的老伙计福卡斯（让·勒费弗尔 Jean Lefebvre 饰）因为一场意外而丧失了记忆，能够让他回忆起过去的，只有他们这几个曾经生死与共的兄弟们了。这个消息让奎萨顿时来了精神，一行人浩浩荡荡的向着福卡斯所在的疗养院出发了。

Cruchot's police office moves into a new building. They do not only get high tech equipment, but also four young female police officers to educate. All of them scramble to work with them -- and cause pure chaos while being distracted by the fine ladies. Then they get into real trouble when one after the other of their female colleagues is kidnapped.

The bungling inspector Cruchot finds himself trying to save the residents of St. Tropez from some oil-drinking humanoid aliens. The only way to tell the aliens from the real people, besides their constant thirst for oil-products, is that they sound like empty garbage cans when you touch them. Chaos is ahead.