Line of Duty — Season 4

The fourth series sees AC-12 facing their most devious opponent yet! Under pressure from her superiors, DCI Roz Huntley charges a young man with a series of murders after months of fruitless investigation, but is he guilty? The Chief Forensic Investigator has doubts and turns to AC-12.

1. 1 Episode 1 2017-03-26
2. 2 Episode 2 2017-04-02
3. 3 Episode 3 2017-04-09
4. 4 Episode 4 2017-04-16
5. 5 Episode 5 2017-04-23
6. 6 Episode 6 2017-04-30

Line of Duty