Corbett's most daring plan yet requires McQueen to exploit links with corrupt police officers.

AC-12 make a shocking discovery.

Line of Duty Season 5 Episodes...

• s05e01 - Series 5, Episode 1
• s05e02 - Series 5, Episode 2
• s05e03 - Series 5, Episode 3
• s05e04 - Series 5, Episode 4
• s05e05 - Series 5, Episode 5
• s05e06 - Series 5, Episode 6

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.