Episode 1

S4 E1: A young couple has been spotted carrying the body of a mutilated man into the woods. Captain Laure Berthaud and her team soon discover that the unidentified man has been killed by a home-made bomb. The team is distracted by from their investigation by internal conflict and the appointment of a new commissioner who wants quick results. Josephine Karlsson is being pressured by a dangerous Russian mobster with links to the Kremlin.