- 8.4/10(1.6k votes)
#1 - Episode 1
S4:E1Director:Jed MercurioWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:Jed MercurioWriter:Jed Mercurio - 8.1/10(1.3k votes)
#2 - Episode 2
S4:E2Director:Jed MercurioWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:Jed MercurioWriter:Jed Mercurio - 8.6/10(1.4k votes)
#3 - Episode 3
S4:E3Director:John StricklandWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:John StricklandWriter:Jed Mercurio - 8.5/10(1.4k votes)
#4 - Episode 4
S4:E4Director:John StricklandWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:John StricklandWriter:Jed Mercurio - 8.5/10(1.3k votes)
#5 - Episode 5
S4:E5Director:John StricklandWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:John StricklandWriter:Jed Mercurio - 9.0/10(1.6k votes)
#6 - Episode 6
S4:E6Director:John StricklandWriter:Jed Mercurio0 CommentsBe first to comment!Be the first to share your thoughts
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Director:John StricklandWriter:Jed Mercurio

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The Best Episodes of Line of Duty Season 4
Every episode of Line of Duty Season 4 ranked from best to worst. Discover the Best Episodes of Line of Duty Season 4!

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Season 4 Ratings Summary
"Episode 1" is the best rated episode of "Line of Duty" season 4. It scored 8.4/10 based on 1564 votes. Directed by Jed Mercurio and written by Jed Mercurio, it aired on 3/26/2017. This episode is rated 0.3 points higher than the second-best, "Episode 2".