Line of Duty Series 4

Series 4

Line of Duty Series 4

First Air Date: March 26, 2017

First Aired on    :   2017
Episodes    :   6 episodes

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.



Episodes

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4x06 Royal Hunting Ground (April 30, 2017)


While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.


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4x05 Lying Nest (April 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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4x04 Moral Superiority (April 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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4x03 In the Trap (April 09, 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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4x02 Who Sows the Wind (April 02, 2017)


AC-12 crank up their investigation into Operation Trapdoor. Kate makes progress in her undercover role.


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4x01 In the Shadow of the Truth (March 26, 2017)


DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.




Season Regulars