Episode guide
Unforgotten: Season 4
6 episodes · first aired Feb 22, 2021
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.
- 1 Episode 1 Feb 22, 2021 · 46m 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…
- 2 Episode 2 Mar 1, 2021 · 46m 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…
- 3 Episode 3 Mar 9, 2021 · 46m 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.
- 4 Episode 4 Mar 15, 2021 · 46m 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.
- 5 Episode 5 Mar 22, 2021 · 46m 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.
- 6 Episode 6 Mar 29, 2021 · 46m Despite a tragic turn of events, Sunny and the team narrow down the suspects.