The attractive but occasionally bumbling Parisian cops and lawyers return to BBC4 on Saturday for Spiral, Series 4: State of Terror. Episode 1 is at 9pm with episode 2 (of twelve) following straight after.
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.