Spiral: Series 4 (2012)

We return to the seedier side of Paris for another instalment of the French crime drama, Spiral. Gritty, stylish and nail-bitingly tense, the series that leaves you dying for more is released on DVD from 18th March 2013 from BBC Worldwide.

We rejoin Captain Berthaud, Prosecutor Clement, Judge Roban and a host of other complex and challenging characters; we are plunged back deep in to the corridors of power, where corruption is rife and it's not always easy to tell what side of the law people are on.

Police Captain Laure Berthaud and her lieutenants, Gilou and Tintin, investigate when a student is abandoned by his accomplices in a forest near Paris after being blown asunder by their homemade bomb. Lawyer Joséphine Karlsson is getting herself into dangerous waters defending undocumented immigrants; her colleague, Pierre Clément, surprisingly finds himself representing crime boss, Johnny Jorkal; while Judge Roban returns to the Palais De Justice, sidelined and on the warpath.

As the story unfolds to reveal a group of extremists intent on waging a war against the Parisian Gendarmerie and a dangerous arms-trafficking operation, the police and the lawyers begin to turn on each other in another tense and gripping series.

A box set of all four series is also available from 18th March 2013.

Please note - Disc special features are subject to change, may differ from format to format and/or may differ from region to region.