Albert, a French Resistance hero, is on a mission to get hold of an elixir capable of giving strange abilities to whoever drinks it. Unfortunately, the potion ends up in the hands of four teenagers, who do not intend to team up, or to help Albert.

After failing to contact the head of Resistance, our heroes have no other choice but to steal Colonel Dietrich's papers in order to cross the barricades. Undercover in the brothel where the Nazi officer spends his evenings, the teenagers and Albert will have to learn to cooperate to fulfill their mission, and Manu will have to - unwillingly - transform into a prostitute...