Line of Duty Poster

Line of Duty

If you think catching criminals is tough, try catching police officers.

A drama about the investigations of AC-12, a controversial police anticorruption unit.

  • Status: Returning Series
  • Original Language: en
  • In Production: Yes
  • Number of Seasons: 6
  • Number of Episodes: 36
  • First Air Date: 2012-06-26

Seasons

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Season 0: Specials

Air Date: 2016-03-17

Episode Count: 2

No overview available.

Season 1 Poster

Season 1: Series 1

Air Date: 2012-06-25

Episode Count: 5

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.

Season 2 Poster

Season 2: Series 2

Air Date: 2014-02-11

Episode Count: 6

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?

Season 3 Poster

Season 3: Series 3

Air Date: 2016-03-23

Episode Count: 6

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.

Season 4 Poster

Season 4: Series 4

Air Date: 2017-03-25

Episode Count: 6

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.

Season 5 Poster

Season 5: Series 5

Air Date: 2019-03-30

Episode Count: 6

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.

Season 6 Poster

Season 6: Series 6

Air Date: 2021-03-20

Episode Count: 7

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.