Line of Duty (Seasons 1–7)

Line of Duty (2012) is a BBC crime drama you can watch online on iFILM. Detective Sergeant Steve Arnott is moved into anti-corruption unit AC-12 after a botched counter-terror raid, ordered from above, leaves an innocent man dead.

AC-12 does the job nobody on the force welcomes: investigating other police officers. Arnott teams with Kate Fleming under the granite-jawed Superintendent Ted Hastings to work out which colleague is bent. Each series puts a fresh suspect in the chair, with guest leads drawn from the likes of Lennie James, Keeley Hawes, Thandiwe Newton and Kelly Macdonald. The show's signature is the interrogation scene, long unbroken takes where a single slip of phrasing can crack a case wide open.

Created by Jed Mercurio, the series ran six seasons, and its 2021 finale pulled in more than fifteen million UK viewers, the biggest drama audience of the decade. It hooks you not with shootouts but with the slow grind of procedure and the nagging question of which uniform you can actually trust. Stream every season of Line of Duty online on iFILM.