Unforgotten

1. S01E01Season's bestEpisode 1October 8, 2015 8.4A skeleton found in the cellar of a building being demolished prompts investigation from DCI Cassie Stuart and her colleague DS Sunny Khan i
2. S01E02Episode 2October 15, 2015 8.4Having identified the body in the cellar as Jimmy Sullivan, Cassie visits the victim's mother, who is relieved that she might finally find o
3. S01E03Episode 3October 22, 2015 8.2Cassie and Sunny dig deeper into the lives of two of the people mentioned in the diary. They begin with Father Robert Greaves, who remembers
4. S01E04Episode 4October 29, 2015 8.0As the investigation into the cold-case murder continues, the forensic team discovers that the marks on the victim's body are consistent wit
5. S01E05Episode 5November 5, 2015 7.9As Cassie and Sunny continue their investigation into the cold-case murder, the net tightens around the people whose names were found in the
6. S01E06Episode 6November 12, 2015 8.3Father Robert's revelations prove to have lasting repercussions, especially for Caroline when she goes into premature labour. Bella and Josh

Season 1 ranked & reviewed

1. S02E01Episode 1January 5, 2017 7.5The new series starts with the discovery of body found in a sealed suitcase in the silt of the River Lea. With the body preserved but clearl
2. S02E02Episode 2January 12, 2017 7.6Detectives Cassie and Sunny begin to find out a bit more about who David Walker was through speaking to his ex-wife Tessa.
3. S02E03Episode 3January 19, 2017 7.3Further examination of David Walker's history suggests that he was a troubled man with a number of issues. Marion has a prickly chat with Ca
4. S02E04Episode 4January 26, 2017 7.9A disturbing allegation about David opens up a second line of enquiry for the team. How much Tessa actually knew about David's life threaten
5. S02E05Episode 5February 2, 2017 7.7In the penultimate episode of the series, Cassie turns her attention to investigating the goings-on at the Brentford house and the theory th
6. S02E06Season's bestEpisode 6February 9, 2017 8.1With each of the suspects having a motive, opportunity or connection to victim, David Walker, Cassie and Sunny try to join the dots to disco

Season 2 ranked & reviewed

1. S03E01Episode 1July 15, 2018 7.9When human remains are found buried in the central reservation of the M1, Cassie and Sunny begin the task of identifying them.
2. S03E02Episode 2July 22, 2018 7.9Cassie, Sunny and the team travel to Middenham to meet Hayley's parents and twin sister, Jessica. The press are already circling in the area
3. S03E03Episode 3July 29, 2018 7.9Peter, Chris, James and Tim are all interviewed by Cassie and Sunny about the time they spent renting a holiday cottage near where Hayley di
4. S03E04Episode 4August 5, 2018 8.0It becomes clear that the four male suspects have colluded in lying about their version of events on the night Hayley went missing. Jake spe
5. S03E05Season's bestEpisode 5August 12, 2018 8.4Cassie and Sunny call James, Tim and Chris back for further questioning following the revelation that they have all lied about their whereab
6. S03E06Episode 6August 19, 2018 7.8Under the glare of media spotlights, the team race to find the evidence to prove the identity of Hayley's killer.

Season 3 ranked & reviewed

1. S04E01Episode 1February 22, 2021 8.5When a headless and handless body is found in a North London scrapyard, the team led by Sunny are called to investigate. They suspect the bo
2. S04E02Episode 2March 1, 2021 8.2Cassie and Sunny identify four suspects who trained as police probationers together; two of them are still serving police officers.
3. S04E03Episode 3March 9, 2021 8.3Andrews is still unconvinced that there is enough evidence to tie four police officers to the Walsh murder.  But with Fogerty dead, Cassie b
4. S04E04Episode 4March 15, 2021 8.5Cassie and Sunny discover Walsh was chased by all four suspects on the night in question. Willets realizes Fiona's blood sample may have bee
5. S04E05Episode 5March 22, 2021 8.0Cassie and Sunny interview two of the suspects again and get closer to the truth of what happened to Walsh. Balcombe believes she may have f
6. S04E06Season's bestEpisode 6March 29, 2021 8.8Despite a tragic turn of events, Sunny and the team narrow down the suspects. Will they find conclusive proof of who the murder weapon belon

Season 4 ranked & reviewed

1. S05E01Episode 1February 27, 2023 8.3When a severed leg is discovered inside a chimney the team get to work identifying the victim. Cassie's replacement has a rocky start as she
2. S05E02Episode 2February 27, 2023 8.3The team work to identify the body found in the chimney flue as forensics reveal the cause of death. Jess and Sunny visit the victim's mothe
3. S05E03Episode 3February 27, 2023 8.2The victim's turbulent past comes to light. While Sunny takes a trip to Paris and Jess drops in on an unsuspecting Lord, the pair continue t
4. S05E04Episode 4February 27, 2023 8.3Sunny and Jess's personal lives go from bad to worse while they struggle to keep focused. Meanwhile, the suspect list grows and a mother and
5. S05E05Episode 5February 27, 2023 8.2Despite the trouble in their personal lives, Sunny and Jess attempt a reset as they follow the clues in the case.
6. S05E06Season's bestEpisode 6February 27, 2023 8.4Can Sunny, Jess and the team bring the clues in the case together and unravel the secrets to solve it?

Season 5 ranked & reviewed

1. S06E01Episode 1February 9, 2025 8.3When a spine is dredged out of Whitney Marsh, a new case begins for Jess and Sunny's team at Bishop Street CID. Four potential suspects soon
2. S06E02Season's bestEpisode 2February 9, 2025 8.4The Bishop Street team investigate the deceased's record, relationships, and enemies, and Jess and Sunny make contact with his widow. No one
3. S06E03Episode 3February 9, 2025 8.0The team discover Asif, Mel, and Marty's connections to the deceased, and bring Marty in. Secrets from the deceased's past come to light, an
4. S06E04Episode 4February 9, 2025 8.0With the details of the deceased's life becoming clearer and one suspect already being questioned, the Bishop Street team find suspects furt
5. S06E05Episode 5February 9, 2025 8.1Lies are uncovered, and suspects are taken into custody, but who's protecting who? Meanwhile, Jess plans a conversation with Steve.
6. S06E06Episode 6February 9, 2025 8.4For better or worse, Jess and Sunny finally get the truth from Asif, Marty, Mel, and Juliet. But both on and off the case, the truth leads t

Season 6 ranked & reviewed