Written by Jed Mercurio, the six new episodes star Keeley Hawes, Vicky McClure, Martin Compston and Mark Bonnar.

Series 2 opens with the ambush of a police convoy in which three police officers are killed and a protected witness seriously injured. The sole surviving police officer is Detective Inspector Lindsay Denton (Keeley Hawes). Deputy Chief Constable Mike Dryden (Mark Bonnar) takes personal charge, assigning AC-12 to the case. Detective Sergeant Steve Arnott (Martin Compston), Detective Constable Kate Fleming (Vicky McClure) and Superintendent Ted Hastings (Adrian Dunbar) are joined by newly appointed Detective Constable Georgia Trotman (Jessica Raine) to investigate a complex case rich in unexpected twists and turns. Initially AC-12’s most valuable witness, the suspicion soon arises that DI Denton could be their prime suspect.

Watch the trailer…

Series 1 aired last summer, averaging an audience of 4.2 million and was BBC Two’s biggest new drama series for 10 years.

> Buy Series 1 on DVD on Amazon.

Are you looking forward to Series 2? Let us know below…