It is the end of the school year for the children of a dormitory town. Most of them leave the place for a vacation with their parents but not Lucien and Adama whose parents can't afford the expense. While the big brothers of the housing estate are busy breaking the law Lulu and Adama manage to sneak into their neighbors' trailer. The two stowaways are elated until they reach their destination: a nudist camp...!

En pleine période de migrations estivales, deux enfants de dix ans, Adama et Lucien, contraints de rester dans leur cité, décident d'un commun accord de partir eux aussi en vacances. Et pour y parvenir, tous les moyens sont bons et tous les coups sont permis.