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Martin Compston, Vicky McClure, Kelly Macdonald
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Watch Full Episodes of Line of Duty
Watch Line of Duty Season 4
A sergeant who refuses to be involved in a police cover-up joins an anti-corruption team.
- In the Shadow of TruthEpisode 157 minsDCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer.
- Who Sows the WindEpisode 259 minsA dismembered body is discovered, and worries grow when DCI Roz Huntley fails to report for duty.
- In the TrapEpisode 359 minsAC-12 wrestle with the new forensic evidence casting doubt over Tim Ifield.
- Moral SuperiorityEpisode 458 minsAC-12 discover new anomalies in the forensic evidence and issue Roz with a second Reg 15 notice.
- Lying NestEpisode 559 minsRoz struggles to allay her husband's suspicions, and the AC-12 find a new angle to pursue their case.
- Royal Hunting GroundEpisode 658 minsNick Huntley faces lengthy questioning over his role in Tim Ifield's murder.
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Frequently Asked Questions
- How can I watch Line of Duty?
Download the Peacock app and start streaming full episodes of Line of Duty. View the full list of supported devices.
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- How many seasons of Line of Duty are there?
Peacock currently has 4 seasons of Line of Duty available for streaming.