Line of Duty
A drama about the investigations of AC-12, a controversial police anticorruption unit.
DCI Jo Davidson receives new information about the whereabouts of a suspect in the unsolved murder of investigative journalist Gail Vella. En route to raid the property, she spots an armed robbery in progress and stops the convoy. Suspicious of her motives, AC-12 launch an investigation. Still dealing with the fallout from their explosive investigation into undercover officer John Corbett, AC-12 soon realise they are facing their most enigmatic adversary yet.
Having opened an official inquiry into DCI Jo Davidson and Operation Lighthouse, AC-12 begin to suspect a cover up. Steve and Chloe dig into Gail Vella’s controversial reporting for clues to her murder, and find links to previous AC-12 cases. Their investigation takes a shocking turn when they begin to scrutinise Jo's personal life.
On the strength of evidence from a new witness, DCI Jo Davidson brings Terry Boyle back in for questioning about Gail Vella's murder. Kate is torn between loyalty to Jo and wanting to assist AC-12's investigation, and tensions increase when Kate encounters a face from the past with links to organised crime.
Mother of God! DS Arnott, DI Fleming and Superintendent Hastings are back and only interested in one thing, catching bent coppers. In an exclusive ‘deleted’ scene from series five, all three can be seen interrogating DC Taylor, an accused corrupt copper (played by Jason Isaacs) who they suspect knows the identity of the real ‘H’. Unfortunately for DC Taylor, his representation comes in the form of ineffective lawyer David Rickman (played by Lee Mack).