一名保护人员和一名军情六处特工在一次恐怖袭击后联手行动。他们一边怀疑有内奸，一边争分夺秒地挫败威胁巴黎的更大阴谋。

一群警察用特殊手段追捕一名罪犯，以防止马赛陷入血腥屠杀。

While Gilou awaits his trial in prison, Laure's group is being sidelined. They do their utmost to be given one case in particular: that of the murder