Where to watch Line of Duty Season 4
Line of Duty season 4 is streaming in Australia on Foxtel Now (subscription), BritBox (subscription), Binge (subscription) and Stan (subscription). You can also buy it on Apple TV from $15.99. Season 4 was released on 26 March 2017.
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Stream (subscription)
Stream now on Foxtel NowFoxtel Now
Subscription
From $35/mth
7 Day Free Trial on BritBoxBritBox
Subscription
$13.99/mth
Stream now on BingeBinge
Subscription
From $10/mth
Watch now on StanStan
Subscription
From $9.99/mth · Added 15 October 2026
Buy or rent
Stream now on Apple TVApple TV
Buy
Buy from $15.99 a season
Availability checked 31 October 2026. Streaming availability data from JustWatch.
Line of Duty Season 4 episodes
S04 E01
In the Shadow of Truth
57 mins · Sun, 26 Mar 2017
DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation. When another young woman is abducted, Roz is on the scene to track down and charge a 24-year-old man.
S04 E02
Who Sows the Wind
59 mins · Sun, 2 Apr 2017
A dismembered body is discovered, and worries grow when DCI Roz Huntley fails to report for duty; AC-12 crank up their investigation into Operation Trapdoor, concerned that Michael Farmer will go to jail for crimes he didn't commit.
S04 E03
In the Trap
59 mins · Sun, 9 Apr 2017
As AC-12 wrestle with the new forensic evidence casting doubt over Tim Ifield, Kate is approached by another woman claiming to have been assaulted by Michael Farmer.
S04 E04
Line of Duty
58 mins · Sun, 16 Apr 2017
Nick is brought in for questioning by AC-12 and denies involvement in Steve's attack, but his suspicions about Roz mount; AC-12 discover new anomalies in the forensic evidence.
S04 E05
Line of Duty
58 mins · Sun, 23 Apr 2017
DCI Roz Huntley struggles to alleviate her husband's suspicions; AC-12 discover a new angle to pursue in their case against her.
S04 E06
Line of Duty
57 mins · Sun, 30 Apr 2017
Nick Huntley endures lengthy questioning over his role in Tim Ifield's murder, and AC-12 remain convinced of Roz's involvement.