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Line of Duty is a mystery and drama TV series that premiered on BBC One on June 26, 2012. It has 7 seasons and 42 episodes so far and is still airing new episodes. The latest episode, Season 6 Episode 7, aired on May 2, 2021.
A drama about the investigations of AC-12, a controversial police anticorruption unit.
Last updated
42 episodes · 7 seasons
2012 · 5 episodes · Last episode: 14 years ago
DS Steve Arnott is transferred to the police anti-corruption unit after the death of a man in a mistaken shooting during a counter-terrorist operation by another cop.
Line of Duty Series 1 release dates →
E5
With Gates on the run, the anti-corruption team come under pressure to close the case once and for all. Arnott is forced to make some tough decisions about where his loyalties lie. Fleming and Hastings go all out to catch Gates, leading to a shattering conclusion.
E4
Desperate for proof of Gates's corruption, Fleming pushes her relationship with him to the limit. But her behaviour causes Morton to question if she might not be such a loyal colleague after all.
E3
Arnott is convinced Gates played a part in Jackie's disappearance. With Fleming's help, the anti-corruption team tries to trap Gates into revealing his involvement in covering up Jackie's crimes.
E2
Having been duped into covering up Jackie's crime, Gates is desperate to sever ties with her. But, as Arnott and Fleming close in on his secret, Gates is plunged into an even more dangerous situation than he first thought.
E1
When Steve Arnott is transferred to a police anti-corruption unit, he finds his target is the city's top detective, Tony Gates. Can Gates really be as good as he appears? Arnott must engage in a cat-and-mouse struggle to uncover Gates' secret.
2014 · 6 episodes · Last episode: 12 years ago
An ambush of a police convoy results in three police officers dead and a protected witness seriously injured. The sole surviving police officer is Detective Inspector Lindsay Denton. Deputy Chief Constable Mike Dryden takes personal charge, assigning AC-12 to the case. Initially AC-12’s most valuable witness, the suspicion soon arises that Denton could be their prime suspect. In the pursuit of corruption, how far will they go to uncover the truth?
Line of Duty Series 2 release dates →
E6
AC12's investigation finally exposes a vicious criminal gang run from within the police. But while Steve now appears convinced of Lindsay's innocence, Kate remains determined to prove she had a role in the ambush.
E5
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.
E4
Following the violent attack she suffered in prison, Lindsay is granted special dispensation to visit her dying mother. Meanwhile, deputy chief constable Dryden shrugs off allegations about his relationship with Lindsay and possible links to the ambush.
E3
Lindsay is denied bail and finds herself targeted in prison. Growing increasingly desperate, she tells Kate about a relationship with an executive police officer and her theory of why she is being framed.
E2
Following the tragedy at the hospital, AC12's Kate Fleming is planted undercover in Lindsay Denton's Missing Persons Unit. But Lindsay in turn gathers compromising evidence against the anti-corruption team.
E1
A brutal ambush on a police convoy leaves three officers dead and a protected witness fighting for his life. AC-12 turn their spotlight on Lindsay Denton, the officer who led the convoy but escaped unscathed.
2016 · 6 episodes · Last episode: 10 years ago
After a criminal is shot dead during a police raid, the AC-12 team begins examining the conduct of Sergeant Danny Waldron, leader of an elite unit. But Waldron’s loyal team obstructs the investigation, and the truth about the shooting proves more complicated than Arnott and Fleming could ever have imagined.
Line of Duty Series 3 release dates →
E6
DS Steve Arnott is arrested on suspicion of murder but continues to protest his innocence.
E5
Loyalties are divided when DS Steve Arnott comes under scrutiny from his colleagues.
E4
Fresh testimony launches AC-12 back on the trail of a corrupt officer.
E3
DS Steve Arnott believes there is a dark secret in Danny Waldron's past.
E2
After the shooting at the drugs house, DC Fleming increases the pressure on Danny Waldron.
E1
Sergeant Danny Waldron and his armed response team shoot dead a hardened criminal.
2017 · 6 episodes · Last episode: 9 years ago
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.
Line of Duty Series 4 release dates →
E6
While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.
E5
DCI Roz Huntley struggles to allay her husband's suspicions. AC-12 find a new angle to pursue their case against her.
E4
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.
E3
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.
E2
AC-12 crank up their investigation into Operation Trapdoor. Kate makes progress in her undercover role.
E1
DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.
2019 · 6 episodes · Last episode: 7 years ago
Series 5 follows the actions of Superintendent Ted Hastings, D.I. Kate Fleming and D.S. Steve Arnott as they investigate an Organised Crime Group with links to missing undercover officer D.S. John Corbett.
Line of Duty Series 5 release dates →
E6
In a nail-biting 90-minute finale, Hastings's secrets are laid bare. Will 'H' be revealed at last?
E5
As the hunt for 'H' intensifies, Steve and Kate wonder if Hastings is guarding a dark secret.
E4
Tensions rise in the OCG following the events at Eastfield. With troubling questions hanging over the identity of ‘H', suspicions mount at AC-12.
E3
Corbett's most daring plan yet requires McQueen to exploit links with corrupt police officers.
E2
Kate and Steve attempt to track down a lead. A fresh police leak enables another audacious raid, while Steve’s attempts to gather information put him in a dangerous situation.
E1
Following the deadly hijack of a police convoy, AC-12 target a ruthless organised crime group known to have links with corrupt officers.
2021 · 7 episodes · Last episode: 5 years ago
Series 6 sees AC-12 facing their most enigmatic adversary so far: Detective Chief Inspector Joanne Davidson, the senior investigating officer of a high-profile unsolved murder.
Line of Duty Series 6 release dates →
E7
With time running out, AC-12 attempt to unmask 'H', the Fourth Man (or Woman) commanding the network of corrupt officers behind the murder of Gail Vella. But sinister and powerful forces appear intent on orchestrating a cover-up.
E6
As AC-12 struggle to deal with the repercussions of tragic events, Hastings makes one final bid to uncover institutionalised corruption before his time runs out.
E5
AC-12 link Gail Vella’s murder with a historic case of police corruption, and Kate hatches a plan to tell once and for all if Jo is bent. They are closer than ever to cracking the case, but when Hastings’ authority is undermined it leaves his team in a potentially dangerous situation.
E4
DCI Jo Davidson faces increasing pressure from all sides as AC-12 make major breakthroughs in the investigation, but an attempt to interview a key witness goes horribly wrong.
E3
On the strength of evidence from a new witness, DCI Jo Davidson brings Terry Boyle back in for questioning about Gail Vella's murder. Kate is torn between loyalty to Jo and wanting to assist AC-12's investigation, and tensions increase when Kate encounters a face from the past with links to organised crime.
E2
Having opened an official inquiry into DCI Jo Davidson and Operation Lighthouse, AC-12 begin to suspect a cover up. Steve and Chloe dig into Gail Vella’s controversial reporting for clues to her murder, and find links to previous AC-12 cases. Their investigation takes a shocking turn when they begin to scrutinise Jo's personal life.
E1
DCI Jo Davidson receives new information about the whereabouts of a suspect in the unsolved murder of investigative journalist Gail Vella. En route to raid the property, she spots an armed robbery in progress and stops the convoy. Suspicious of her motives, AC-12 launch an investigation. Still dealing with the fallout from their explosive investigation into undercover officer John Corbett, AC-12 soon realise they are facing their most enigmatic adversary yet.
Created by Jed Mercurio
Liz White
Jo
Gregory Piper
Ryan Pilkington
Nigel Boyle
DI Ian Buckells
Neil Morrissey
Nigel Morton
George Costigan
Patrick Fairbank
Maya Sondhi
PC Maneet Bindra
Scott Reid
Michael Farmer
Harriet Cains
Jade
Anna Maxwell Martin
Patricia Carmichael
Dylan Duffus
Wesley Duke
Neet Mohan
PC Simon Bannerjee
Gina McKee
Jackie Laverty
Darren Morfitt
PS Colin Brackley
Elizabeth Hill
Aaliyah Ali's Solicitor
Neal Foster
Coroner
Martin Buchan
Chief Constable
A date for the next episode of Line of Duty hasn't been announced yet. Follow Line of Duty in the Streambay app and you'll be notified as soon as a new episode airs.
The most recent episode of Line of Duty, Season 6 Episode 7, aired on May 2, 2021.
Line of Duty has 7 seasons with 42 episodes in total.
Line of Duty first aired on BBC One on June 26, 2012.
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