6 Season
36 Episode
Line of Duty - Season 5 Episode 4
If you think catching criminals is tough, try catching police officers.
Tensions rise in the OCG following the events at Eastfield. With troubling questions hanging over the identity of ‘H', suspicions mount at AC-12.
- Year: 2021
- Country: United Kingdom
- Genre: Crime, Drama, Mystery
- Studio: BBC One, BBC Two
- Keyword: police, dirty cop, internal affairs, police corruption, procedural, anti-corruption, police procedural
- Director: Jed Mercurio
- Cast: Martin Compston, Vicky McClure, Adrian Dunbar, Gregory Piper, Nigel Boyle, Kelly Macdonald