After getting screwed over by life (again), two losers decide that enough is enough. Using stolen ski masks and stolen toy guns, they take hostages in their local bank, holding them for ransom. Things go well until the hostages learn what's going on, and demand a piece of the action for themselves.
Fred, Achille, Max and Belette form a good-for-nothing gang of crooks. Dismally failing their last raid, they decide to get back in the game, kidnapping Sophie Marceau.
Campana, a commissar at the drugs bureau of Paris police gets an undercover job in Nice to catch an Italian-French mafia boss. As he slips into the identity of a gangster's brother, who was already killed, he has to play the role of a loving husband with child - something that is not so easy for a confirmed single like Campana. Unfortunately American killers chase behind the Nice mafia clan too, in order to get control of French drug trades to USA.