Line of Duty: Season 3 (2016)


Season 3
Line of Duty

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Critic Ratings: 7


Audience Score

User Ratings: 68

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Air date: Apr 20, 2019

Sergeant Danny Waldron and his armed response team shoot dead a hardened criminal, but cracks soon appear in their story. Are they hiding a cold-blooded murder?

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Air date: Apr 27, 2019

A previous AC12 investigation comes under legal scrutiny; Kate Fleming uses her undercover role to increase the pressure on Danny Waldron's armed response unit.

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Air date: May 4, 2019

DS Steve Arnott believes there is a dark secret in Danny Waldron's past. But while DI Cottan is commended for cracking the Waldron case, the spotlight falls on Arnott's questionable conduct in a previous enquiry.

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Air date: May 11, 2019

Steve Arnott approaches a retired vice chief to find out if the allegations he has heard were ever investigated. However, the one-time detective is a close friend of Hastings, who not only puts a block on any questioning but also begins to doubt the integrity of his apprentice.

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Air date: May 18, 2019

Lindsay fights for her life as troubling details emerge of a vicious conspiracy involving corrupt police officers. With growing evidence of links between DCC Dryden and the ambush, Hastings is under pressure to arrest his senior officer.

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Air date: May 25, 2019

AC-12 legal counsel Gill Biggeloe pressurises Superintendent Ted Hastings but some new evidence leaves the enquiry turning on its head.

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Line of Duty: Season 3 Photos

Tv Season Info

Line of Duty returns forathird series, as AC12 continues to hunt for any corruption lurking within the police.


Vicky McClure
as Kate Fleming
Adrian Dunbar
as Ted Hastings
Martin Compston
as Steve Arnott
Craig Parkinson
as Dot Cottan
Daniel Mays
as Danny Waldron
Will Mellor
as Rod Kennedy
Leanne Best
as Jackie Brickford
Arsher Ali
as Harinderpal 'Hari' Bains
Keeley Hawes
as Lindsay Denton
Show More Cast

News & Interviews for Line of Duty: Season 3

Critic Reviews for Line of Duty Season 3

All Critics (7) | Top Critics (2)

Expect sharp turns on a white-knuckle ride.

Aug 12, 2020 | Full Review…

The characters have been memorable, sometimes indelibly so. The plotting has been meticulous, demanding our more than usual attention. Yet it has remained a work of social realism.

Dec 31, 2017 | Rating: 5/5 | Full Review…

From hereon in, each episode ramped up the tension with surprises galore.

Oct 17, 2018 | Full Review…

If the first three series have taught us anything, it's that the web of corruption stretches far and wide.

Oct 17, 2018 | Full Review…

Yet, what makes Line of Duty so good is not just the traditional pleasures of plot, pace and characterisation. It's also Mercurio's entirely justified belief that the more technical aspects of an anti-corruption case can be extremely dramatic too.

Sep 7, 2018 | Full Review…

We'd waited a long time, almost the entire length of this 90-minute finale, for some action. It was worth waiting for.

Jul 20, 2018 | Rating: 5/5 | Full Review…

In many ways, the third series of Jed Mercurio's riveting police thriller felt like a climax - delivering not just the huge twists we've now come to expect, but explosive pay-offs to threads that had been running since the very first episode in 2012.

Jun 22, 2018 | Full Review…

Audience Reviews for Line of Duty: Season 3

  • Sep 03, 2020
    Usor fortat dar interogatoriile
  • Aug 09, 2020
    The series steps up the high drama, relinquishing some realism, to provide a nail-biting story with satisfying twists and turns.
  • Feb 18, 2020
    Great series, cracking cast and storylines. Pleased they sorted out DS Arnott's eyebrows in this season - I found them very distracting 😂😂😂
  • Oct 07, 2019
    So many plot twists with enduring characters season to season. No easy answers but the thought provoking questions will keep you up all night. Brilliant show.
  • Jul 20, 2019
    Continued excellent performances in this character driven series.
  • Jul 15, 2019
    Daniel Mays was amazing! Wish he'd had a longer standing character in this fantastic series. I don't pay for cable...but I do pay for Amazon Prime and Acorn - specifically for this show. It's amazing.
  • May 29, 2019
    Found myself getting agravated right from the start of the series as the plot had more holes than a block of Swiss Cheese. Some of the scenarios were so implausable, bordering on the ridiculuous. Examples .... right from the start, with the assasination of a suspect by Danny and then his team agreeing to cover it up ? Why would they cover him for a murder??, he was the run who ran ahead. A gun shot sound travels for at least a thousand meters. No one heard the gun shots out of sync with the story the team told?? . 9x19 Parabellum round will not make holes in bricks !!!! I could go on and on in every episode but the last straw was the chase in the final episode, Kate chasing down Cottan .... ON HER OWN??? The building was full of police officers but only she gives chase ??? Really ???? She hitches a ride on a truck .... tells him to drive full speed and only just keeps up with 2 guys running on foot??? As for that shooting, impossible. After a run like that neither Kate nor anyone else couldn't hold the weapon steady enough to hit a building, let alone a moving target at around 200 meters. The finest marksman in the world couldn't make that shot. And why would someone be sitting in the Range Rover WEARING A CRASH HELMET... for heavens sake. Still ... not the worst series I have ever watched as it had it's moments..
  • Apr 08, 2019
    Continues a similarly excellent trajectory to Season 2. Gripping story telling, enhanced by outstanding performances from Hawes, Compston & Craig Parkinson. For mine, the best cop drama on TV bar none.
  • Feb 07, 2018
    This is an incredibly well written series. The characters are complex and fully developed. Highly recommend!
  • Apr 07, 2017
    A thoroughly entertaining series with great tension and suspense throughout and enough tunrs and twists to make you dizzy. When another series comes on, your week suddenly feels a whole lot longer when you are waiting for the next episode!

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