Premiere Date Confirmed For Line Of Duty Series 4

When Line Of Duty, written by Jed Mercurio, returns with series four on 26th March, DCI Roz Huntley (Thandie Newton) and her team are in the thick of a career-defining hunt for a serial killer.

Under intense pressure to catch the culprit and prove herself to her superiors, Roz faces conflict with her colleague, forensic coordinator Tim Ifield (Jason Watkins), who alerts AC-12 to a possible miscarriage of justice.

A mother of two and wife to husband Nick, (Lee Ingleby), Roz will do anything to stop her life unravelling. Anything…

Determined to uncover the truth, Detective Sergeant Steve Arnott (Martin Compston), Detective Sergeant Kate Fleming (Vicky McClure) and Superintendent Ted Hastings (Adrian Dunbar) must work together to tackle their most devious opponent yet.

Line Of Duty series four premieres 26th March at 9pm on BBC One.