The best episodes of Line of Duty Season 4
Season 4 only — ranked by viewer rating, highs first. Lit marks on the season rail place this list across the run. Vote on a placement to back it or contest it. Fewer than 10 rated episodes — treat this ranking as provisional.
- 01
As shocking new evidence is unearthed, AC-12 step up their investigation in to the case against Michael Farmer. Could the real killer still be at large? Meanwhile, Detective Constable Jamie Desford joins the AC-12 team.
- 02
Roz's husband Nick is brought in for questioning by AC-12. But while Nick denies any involvement in Steve's attack, his suspicions about Roz mount. Meanwhile, AC-12 discover new anomalies in the forensic evidence and issue DCI Roz Huntley with a second Reg 15 notice. AC-12's case appears watertight until Roz starts dismantling their evidence with inside information of her own.
- 03
After months of hunting a serial killer, DCI Roz Huntley faces intense pressure to apprehend a suspect. Michael Farmer is caught and charged with the crimes, but doubts about the young man's guilt lead the chief forensic investigator to AC-12.When DCI Roz Huntley captures a serial killer, Forensic Coordinator Tim Ifield alerts AC-12 to a possible miscarriage of justice.
- 04
AC-12's future hangs in the balance, after Hilton bars them from investigating Roz Huntley. But Roz's problems are building closer to home.
- 05
The explosive series finale pits AC-12 against Roz in a climactic duel to find Tim's murderer and unmask Balaclava Man.
- 06
A dismembered body is discovered, and worries grow when Roz fails to report for duty. After further questioning of Michael Farmer unearths crucial new information, AC-12 challenge the case against him. Meanwhile Arnott and Fleming continue to clash.
Shows like Line of Duty
The closest matches on shared genres, ranked by match strength and popularity.
- 01Drama·Crime·ThrillerThe best episodes of True Detective2014–present
Touch darkness and darkness touches you back. - 02Drama·Crime·ThrillerThe best episodes of The Blacklist2013–2023·NBC
The Blacklist is a crime drama involving a former government agent who turned into a high-profile criminal turning himself in to the FBI offering to help catch criminals. - 03Drama·Crime·ThrillerThe best episodes of Criminal Minds2005–present·Paramount+
Criminal Minds revolves around an elite team of FBI profilers who analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. - 04Drama·Crime·ThrillerThe best episodes of Breaking Bad2008–2019·AMCBreaking Bad follows protagonist Walter White, a chemistry teacher who lives in New Mexico with his wife and teenage son who has cerebral palsy.
- 05Drama·Crime·ThrillerThe best episodes of Euphoria2019–2026Euphoria follows a group of high school students as they navigate love and friendships in a world of drugs, sex, trauma, and social media.
- 06Drama·Crime·ThrillerThe best episodes of The Killing2011–2014·AMC
The Killing follows Seattle homicide detectives Stephen Holder and Sarah Linden and their work as detectives investigating murders.
