Twenty year old Antoine has made enemies of a gang of young thugs, to whom he owes money. Fed up with his scams and petty crimes, his mother and older brother decide to send Antoine to his father's place in Saint-Etienne. The two men haven't seen each other for several years.

Oppressed by her family setting, dead-end school prospects and the boys law in the neighborhood, Marieme starts a new life after meeting a group of 3 free-spirited girls. She changes her name, her dress code, and quits school to be accepted in the gang, hoping that this will be a way to freedom.

Alex, son of a leader of the Algerians in Marseilles, has a series of confrontations with the Corsican mafia after his stint in the French Foreign Legion.