Inspired by the 2005 riots in Paris, Stéphane, a recent transplant to the impoverished suburb of Montfermeil, joins the local anti-crime squad. Working alongside his unscrupulous colleagues Chris and Gwada, Stéphane struggles to maintain order amidst the mounting tensions between local gangs. When an arrest turns unexpectedly violent, the three officers must reckon with the aftermath and keep the neighborhood from spiraling out of control.

Because he wanted to protect his little brother, Teddy, a young man without a history, is accused of the murder of his father and sent to a closed educational center, waiting for his trial for parricide. He then plunges into a brutal universe of which he does not know the rules.

Alfonso, brutal agent of the Department of Protection of High Personalities, is forced to team up with young inexperienced recruit Walter, fascinated by the world of show biz. This improbable duo is in charge of the protection of Jal-Y, a young R'n'B star threatened by his ex, a criminal on the run.

Abdoulaye is a suburbanite of about twenty years old. When one of his brothers dies after a road accident, he takes care of transporting the body back to the village of his parents in Mauritania.

Mitraillette is 12 years old and lives in Rose City, a housing estate he would not leave for anything. His whole world comprises his family, especially his 16 year-old cousin Isma, who has taken a fancy to Narcisse, the local crime boss. His older brother Djibril is 22, a student at the Sorbonne who dreams of becoming a lawyer. As for Mitraillette, he has his eye on Océane, the most beautiful girl in his school...