Lucas and his team are after a gang of Serbian criminals using NATO-issued weapons. As the investigation leads him to Paris, Lucas attempts to reconnect with his estranged daughter, a young narc officer.

Bénédicte Meursault, a female firefighter, has just been transferred to a small fire brigade in the South of France. She is welcomed by Philippe, 45, the wise captain of the brigade. Soon after being introduced to the men, the young woman jumps into action. Unfortunately, while rescuing the victims of a terrible car crash, she does not find one of the injured who was ejected thirty meters away. Now the man is in hospital in a coma and he may die because of her. Completely upset, Bénédicte decides to resign but Philippe dissuades her from doing it.