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Crime•Drama•Mystery

The Best Seasons of Line of Duty

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

Binge this in Unknown•Peaking at 9.5/10

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

Airs on
BBC OneBBC Two
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes
#1

Season 3

6 Episodes

First Aired: Mar 2016

8.7/ 10
Average Rating
#2

Season 5

6 Episodes

First Aired: Mar 2019

8.5/ 10
Average Rating
#3

Season 4

6 Episodes

First Aired: Mar 2017

8.5/ 10
Average Rating

Other Seasons

#4

Season 2

6 Episodes

First Aired: Feb 2014

8.4/ 10
Average Rating
#5

Season 1

5 Episodes

First Aired: Jun 2012

8.0/ 10
Average Rating
#6

Season 6

7 Episodes

First Aired: Mar 2021

8.0/ 10
Average Rating