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 cuddle, and find links to previous AC-12 cases. Their investigation takes a shocking turn when they begin to scrutinise Jo's personal life.

Line of Duty Season 6 Episodes...

• s06e01 - Series 6, Episode 1
• s06e02 - Series 6, Episode 2
• s06e03 - Series 6, Episode 3
• s06e04 - Series 6, Episode 4
• s06e05 - Series 6, Episode 5
• s06e06 - Series 6, Episode 6
• s06e07 - Series 6, Episode 7

Line of Duty Show Summary

Steve Arnott is a young officer who's fallen foul of his superiors for refusing to help in the cover-up of an operation that ended in the shooting of an innocent father. He seems ideal to join AC-12, an anti-corruption police unit, just as it starts to investigate Detective Chief Inspector Tony Gates, the regional force's Officer of the Year.