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Line of Duty Season 4

Here's where to watch every episode of Line of Duty season 4. Mouseover or tap an episode to see where to stream it. Click or tap the play icon to stream it on the best available service.
Season 04, Episode 01 In the Shadow of the Truth

S04 E01

Mar 26, 2017
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In the Shadow of the Truth Mar 26, 2017 DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.

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Season 04, Episode 02 Who Sows the Wind

S04 E02

Apr 2, 2017
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Who Sows the Wind Apr 2, 2017 AC-12 crank up their investigation into Operation Trapdoor. Kate makes progress in her undercover role.

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Season 04, Episode 03 In the Trap

S04 E03

Apr 9, 2017
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In the Trap Apr 9, 2017 As AC-12 wrestle with the new forensic evidence casting doubt over Tim Ifield, Kate is approached by another woman claiming to have been assaulted by Michael Farmer.

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Season 04, Episode 04 Moral Superiority

S04 E04

Apr 16, 2017
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Moral Superiority Apr 16, 2017 Roz's husband Nick is brought in for questioning by AC-12. But while Nick denies any involvement in Steve's attack, his suspicions about Roz mount.

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Season 04, Episode 05 Lying Nest

S04 E05

Apr 23, 2017
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Lying Nest Apr 23, 2017 DCI Roz Huntley struggles to allay her husband's suspicions. AC-12 find a new angle to pursue their case against her.

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Season 04, Episode 06 Royal Hunting Ground

S04 E06

Apr 30, 2017
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Royal Hunting Ground Apr 30, 2017 While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.

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