Drama series following the investigations of AC-12, a controversial police anti-corruption unit.


Jed Mercurio
6 ( 3)




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Top Rated TV #112 | 16 wins & 40 nominations. See more awards »





Series cast summary:
Adrian Dunbar ...  Hastings 36 episodes, 2012-2021
Martin Compston ...  Steve / ... 36 episodes, 2012-2021
Vicky McClure ...  Kate / ... 36 episodes, 2012-2021
Craig Parkinson ...  Cottan 16 episodes, 2012-2019
Gregory Piper ...  Ryan 16 episodes, 2012-2021


Line of Duty follows Detective Seargent Steven "Steve" Arnott (Martin Compston), a former authorized firearms officer who led an operation to catch an Islamic terrorist intending to detonate a bomb, but the strike team mistakenly entered the wrong apartment and shot dead an unarmed innocent man. In the subsequent investigation, Arnott refused to cover up negligence in the planning and execution of the raid and unable to work in his unit anymore, Arnott receives a transfer to AC-12, a unit tasked with uncovering police corruption. Arnott is partnered with Detective Constable Kathrine "Kate" Fleming (Vicky McClure), a highly commended undercover officer with a keen investigative instinct. They work under the supervision of Superintendent Edward "Ted" Hastings (Adrian Dunbar), who is one of several Senior Investigating Officers responsible for uncovering corruption within the police force. Throughout the series, AC-12 investigate seemingly disparate cases involving seemingly corrupt ... Written by World Productions

Plot Summary | Plot Synopsis


From the creator and producers of Bodyguard. See more »


TV-14 | See all certifications »

Parents Guide:

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Did You Know?


Adrian Dunbar (Ted Hastings) and Keeley Hawes (Lindsay Denton) also appeared together in another police thriller called Ashes to Ashes (2008). They also appeared in the second cycle of the BBC's The Hollow Crown (2012). See more »


Referenced in Good Morning Britain: Episode dated 9 May 2017 (2017) See more »

User Reviews

Another show which has not enough recognition
11 May 2016 | by robin_shouldSee all my reviews

Once again I stumbled onto this show by accident. Thank goodness. I find British police drama much more intense than the run of the mill American shows. This one is no exception. The acting is very convincing on all accounts. You think in the beginning how can this "kid" be a good main character. He then proves you very wrong and you see that his conviction to the case is what makes him compelling to watch. All the main players are only too human. The stories all have their own twists and turns, keeping you on your toes all the time. Making this show fascinating to watch. I admit there was an awful lot of binge watching as I couldn't leave the plot at the end of each episode.

Please give this a chance and be rewarded for doing so.

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Release Date:

21 August 2012 (USA) See more »

Also Known As:

Line of Duty See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

1.78 : 1
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