Follows Sara, head of the Toulouse police narcotics squad, who is forced to collaborate with Richard, the head of the local criminal police, to stop a go-fast between Spain and France and find the murderer linked to the case.

17岁的扎克刚刚出狱。被母亲遗弃的他在马赛鱼龙混杂的街区闲逛，后来，他遇到了少女山鲁佐德……