Chris Lang
Director
Unforgotten (2015)
Season 4
The fourth season opens with the discovery of a dismembered body in a scrap metal yard, which the team believe has been stored in a domestic freezer for thirty years. A unique Millwall Football Club tattoo leads to the victim being identified as Matthew Walsh, a young man in his mid-twenties who went missing in March 1990.
Released Oct. 8, 2015
Episode 46 min
17+
Keywords: tmdb.murder-investigation, tmdb.murder-mystery, tmdb.cold-case, tmdb.london-england, tmdb.police, tmdb.detective, tmdb.investigation + 18 more, tmdb.murder, mdblist.has-trailer, imdb.cold-case, imdb.missing-person, imdb.police, imdb.murder, imdb.female-police-detective, imdb.male-female-police-partnership, imdb.london-england, imdb.father-daughter-relationship, imdb.london-metropolitan-police, imdb.police-procedural-crime, imdb.cop-drama, imdb.whodunnit-mystery, imdb.2010s, imdb.dementia, imdb.one-word-title, imdb.2020s
Watch Providers: Amazon Prime Video, PBS, PBS Masterpiece Amazon Channel, Spectrum On Demand, Amazon Prime Video with Ads
Production Companies: Mainstreet Pictures
Network: ITV1
Country: United Kingdom
Languages:
English
6.6
S4E1 - Episode 1
A dismembered body is found in a scrapyard and the team believes the remains had been stored in a domestic freezer for 30 years. Meanwhile, after making the decision to retire from the police force, Cassie faces a dilemma when she learns she isn't entitled to her full pension payment unless she completes her 30 years of service.
Feb. 22, 2021, midnight
7.2
S4E2 - Episode 2
Cassie and Sunny identify four potential suspects who trained as police probationers together, and two of them are still serving officers. They have no luck finding the rest of the body and decide to go public about the discovery of Walsh's remains.
March 1, 2021, midnight
7.2
S4E3 - Episode 3
Cassie and Sunny interview each of the four suspects, who all deny knowing the victim. Bouting discovers Walsh was cautioned three weeks before his death.
March 9, 2021, midnight
7.0
S4E4 - Episode 4
Cassie and Sunny discover Walsh was chased by all four suspects on the night in question. Willets realizes Fiona's blood sample may have been deliberately lost by Liz.
March 15, 2021, midnight
7.3
S4E5 - Episode 5
Cassie and Sunny interview two of the suspects again and get closer to the truth of what happened to Walsh. Balcombe believes she may have found the cause of death.
March 22, 2021, midnight
8.0
S4E6 - Episode 6
Despite a tragic turn of events, Sunny and the team narrow down the suspects.
March 29, 2021, midnight
Network: ITV1
Episode Runtime: 46 min.
Season Runtime: 1657 min.
Released: Oct. 8, 2015
Last Air Date: Feb. 24, 2025, midnight
Status: Returning Series
Certification: TV-MA / 17+
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