Line of Duty

Continuing Sunday / 9:00pm BBC One 60 min.
A drama about the investigations of AC-12, a controversial police anticorruption unit.

Season 6

1 Episodes

TBA

Season 5

6 Episodes

In a nail-biting 90-minute finale, Hastings's secrets are laid bare. Will 'H' be revealed at last?
May 05 2019
As the hunt for 'H' intensifies, Steve and Kate wonder if Hastings is guarding a dark secret.
Apr 28 2019
Tensions rise in the OCG following the events at Eastfield. With troubling questions hanging over the identity of ‘H’, suspicions mount at AC-12.
Apr 21 2019
Corbett’s most daring plan yet requires McQueen to exploit links with corrupt police officers. AC-12 make a shocking discovery.
Apr 14 2019
Kate and Steve attempt to track down a lead. A fresh police leak enables another audacious raid. Steve’s attempts to gather information put him in a dangerous situation.
Apr 07 2019
Following the deadly hijack of a police convoy, AC-12 target a ruthless organised crime group known to have links with corrupt officers.
Mar 31 2019

Season 4

6 Episodes

While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.
Apr 30 2017
DCI Roz Huntley struggles to allay her husband's suspicions. AC-12 find a new angle to pursue their case against her.
Apr 23 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. Meanwhile, AC-12 discover new anomalies in the forensic evidence and issue DCI Roz Huntley with a second Reg 15 notice. AC-12's case appears watertight until Roz starts dismantling their evidence with inside information of her own.
Apr 16 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. While Steve fumes over this contradictory testimony, Kate uses her newfound respect to inveigle herself with the Trapdoor team. Meanwhile, Steve challenges Roz's husband Nick to vouch for his wife's whereabouts on the night Tim Ifield went missing. With Nick proving evasive, Steve senses a whole new angle on the investigation.
Apr 09 2017
A dismembered body is discovered, and worries grow when DCI Roz Huntley fails to report for duty. AC-12 crank up their investigation into Operation Trapdoor, concerned that Michael Farmer will go to jail for crimes he didn't commit. With suspicions that Roz may have withheld crucial evidence, a new DCI is drafted in to run Operation Trapdoor. Kate makes progress in her undercover role, but AC-12's investigation falters when they realise that their main informant, forensic investigator Tim Ifield, has also gone missing.
Apr 02 2017
DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation. When another young woman is abducted, Roz is on the scene to track down and charge a 24-year-old man. But doubts around the young man's guilt lead the chief forensic investigator to ask AC-12 to investigate. Is Roz ignoring forensic evidence that might prove the young man's innocence? AC-12's Supt Hastings places DS Kate Fleming undercover inside Roz's team to dig deeper into the case. With DS Steve Arnott piling on pressure from the outside, Roz is forced to act decisively. A mother of two and wife to Nick, Roz will do anything to stop her life from unravelling.
Mar 26 2017

Season 3

6 Episodes

Breach 3x06
DS Steve Arnott is arrested on suspicion of murder but continues to protest his innocence. Does DC Kate Fleming's undercover operation hold the key to Steve's guilt and the identity of the Caddy?
Apr 28 2016
AC-12's loyalties are divided when DS Steve Arnott comes under scrutiny from his colleagues. With his career in jeopardy, Arnott turns to an unlikely source for help.
Apr 21 2016
Fresh testimony launches AC-12 back on the trail of the Caddy, a corrupt officer with links to organised crime. But new disturbing evidence suggests the Caddy may reside within AC-12.
Apr 14 2016
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.
Apr 07 2016
After the shooting at the drugs house, DC Kate Fleming uses her undercover role to increase the pressure on Danny Waldron's armed response unit. Meanwhile, a previous AC12 investigation comes under legal scrutiny.
Mar 31 2016
Police anti-corruption unit AC12 return for another investigation. 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?
Mar 24 2016

Season 2

6 Episodes

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.
Mar 19 2014
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.
Mar 12 2014
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.
Mar 05 2014
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.
Feb 26 2014
Carly 2x02
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.
Feb 19 2014
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.
Feb 12 2014

Season 1

5 Episodes

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.
Jul 24 2012
Terror 1x04
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.
Jul 17 2012
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.
Jul 10 2012
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.
Jul 03 2012
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.
Jun 26 2012