The BEST episodes of Line of Duty season 3

Every episode of Line of Duty season 3, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Line of Duty season 3!

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

Last Updated: 10/28/2024Network: BBC OneStatus: Ended
Episode 6
star
8.67
1511 votes

#1 - Episode 6

Season 3 - Episode 6 - Aired 4/28/2016

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?

Directors: John Strickland
Writer: Jed Mercurio
Watch Now:AmazonApple TV
Episode 5
star
8.37
1459 votes

#2 - Episode 5

Season 3 - Episode 5 - Aired 4/21/2016

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.

Directors: John Strickland
Writer: Jed Mercurio
Watch Now:AmazonApple TV
Episode 4
star
7.96
1428 votes

#3 - Episode 4

Season 3 - Episode 4 - Aired 4/14/2016

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.

Directors: John Strickland
Writer: Jed Mercurio
Watch Now:AmazonApple TV
Episode 1
star
7.93
1498 votes

#4 - Episode 1

Season 3 - Episode 1 - Aired 3/24/2016

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?

Directors: Michael Keillor
Writer: Jed Mercurio
Watch Now:AmazonApple TV
Episode 3
star
7.91
1382 votes

#5 - Episode 3

Season 3 - Episode 3 - Aired 4/7/2016

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.

Directors: Michael Keillor
Writer: Jed Mercurio
Watch Now:AmazonApple TV
Episode 2
star
7.82
1444 votes

#6 - Episode 2

Season 3 - Episode 2 - Aired 3/31/2016

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.

Directors: Michael Keillor
Writer: Jed Mercurio
Watch Now:AmazonApple TV