7.7/101,420 votes#1 - Episode 1
Season 6 Episode 1 - Aired 3/21/2021
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.
Director: Daniel Nettheim
Writer: Jed Mercurio
8.1/101,146 votes#2 - Episode 2
Season 6 Episode 2 - Aired 3/28/2021
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.
Director: Daniel Nettheim
Writer: Jed Mercurio
8.2/101,112 votes#3 - Episode 3
Season 6 Episode 3 - Aired 4/4/2021
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.
Director: Gareth Bryn
Writer: Jed Mercurio
9.0/101,501 votes#4 - Episode 4
Season 6 Episode 4 - Aired 4/11/2021
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.
Director: Gareth Bryn
Writer: Jed Mercurio
8.9/101,386 votes#5 - Episode 5
Season 6 Episode 5 - Aired 4/18/2021
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.
Director: Jennie Darnell
Writer: Jed Mercurio
8.2/101,169 votes#6 - Episode 6
Season 6 Episode 6 - Aired 4/25/2021
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.
Director: Jennie Darnell
Writer: Jed Mercurio
6.0/102,854 votes#7 - Episode 7
Season 6 Episode 7 - Aired 5/2/2021
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.
Director: Jennie Darnell
Writer: Jed Mercurio
Season 6 Ratings Summary
"Episode 1" is the best rated episode of "Line of Duty" season 6. It scored 7.7/10 based on 1420 votes. Directed by Daniel Nettheim and written by Jed Mercurio, it aired on 3/21/2021. This episode is rated 0.4 points higher than the second-best, "Episode 2".