The WORST episodes of Unforgotten
Every episode of Unforgotten ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Unforgotten!
Dedicated detectives work tirelessly to unravel long-held secrets.
#1 - Episode 1
Season 1 - Episode 1 - Aired 10/8/2015
When a skeleton is unearthed, a car key found near the body is the only clue to the identity of the victim.
#2 - Episode 1
Season 4 - Episode 1 - Aired 2/22/2021
A dismembered body is found in a scrapyard and the team believes the remains had been stored in a domestic freezer for 30 years. 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.
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#3 - Episode 1
Season 5 - Episode 1 - Aired 2/27/2023
When a severed leg is discovered in a bricked-up chimney flue the team get to work identifying the victim and cause of death. Cassie’s replacement on the force, DCI Jess James, has a rocky start as she clashes with a grieving Sunny.
#4 - Episode 2
Season 1 - Episode 2 - Aired 10/15/2015
DCI Cassie Stuart begins to identify the people mentioned in the diary of Jimmy Sullivan.
#6 - Episode 1
Season 2 - Episode 1 - Aired 1/5/2017
A waterlogged suitcase holds the remains of David Walker, 25 years after he disappeared. Walker’s wife, Tessa, turns out to be a police officer. Cassie and Sunny interview two other suspects, Sara and Colin.
#7 - Episode 1
Season 3 - Episode 1 - Aired 7/15/2018
When the body of a teenage girl who went missing at the turn of the millennium is found at a building site off the M1 motorway, four men are placed under the spotlight and their relationships are tested to the limit.
#8 - Episode 2
Season 5 - Episode 2 - Aired 3/6/2023
The 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 mother to break the devastating news. They find the pair had a tumultuous relationship.
#9 - Episode 2
Season 4 - Episode 2 - Aired 3/1/2021
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.
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#10 - Episode 2
Season 2 - Episode 2 - Aired 1/12/2017
Detectives Cassie and Sunny begin to find out a bit more about who David Walker was through speaking to his ex-wife Tessa. A search through the original investigation files and numbers traced from his pager help them build a picture of David, and lead them towards potential suspects. A conversation with David's old school friend leads Cassie and Sunny to believe that they may have found a motive.
#11 - Episode 2
Season 3 - Episode 2 - Aired 7/22/2018
Cassie and Sunny go in search of Hayley's family as the press begin to take an interest in the story. A detective who was involved in the original investigation offers his thoughts on why her disappearance remained unsolved, pointing out that Hayley's boyfriend was suspected of the crime but was never charged. The distance between where Hayley was last seen and where her body was found leads Cassie to form a new theory - that the killer may have travelled up from London, then returned before they could be questioned
#12 - Episode 4
Season 2 - Episode 4 - Aired 1/26/2017
A disturbing allegation about David opens up a second line of enquiry for the team. How much Tessa actually knew about David's life threatens to ruin her relationship with her husband and son. Marion gets into trouble at work and jeopardises her marriage by refusing to open up about her past. After having his phone stolen and information exposed, Colin is blackmailed again - and Sarah's secrets push her family to breaking point.
#14 - Episode 3
Season 1 - Episode 3 - Aired 10/22/2015
As the investigation into Jimmy's death continues, Cassie and Sunny visit Father Robert Greaves in a bid to identify the mysterious Jo-Jo.
#17 - Episode 3
Season 3 - Episode 3 - Aired 7/29/2018
Cassie and Sunny begin their interviews...
#18 - Episode 3
Season 4 - Episode 3 - Aired 3/9/2021
Cassie and Sunny interview each of the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his death and believes it was with Ram, while Collier manages to locate the rest of Walsh's body.
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#19 - Episode 5
Season 2 - Episode 5 - Aired 2/2/2017
Cassie begins to investigate the Brentford house and the theory that one or more of the suspects may have been abused at the gatherings that took place there. The enquiry reveals some information that allows Colin to come to terms with a shame that he has lived with for over 25 years. Sara is forced to confront her past in order to prove her innocence. Marion pushes her family even further away.
#20 - Episode 3
Season 2 - Episode 3 - Aired 1/19/2017
Further examination of David Walker's history suggests that he was a troubled man with a number of issues. Marion has a prickly chat with Cassie about her past and the investigation reveals her close relationship with an IRA activist. As the police enquiries encroach on their lives, Sara and Colin open up to their partners.
#21 - Episode 4
Season 3 - Episode 4 - Aired 8/5/2018
It becomes clear to the detectives that the four men have conspired to come up with a false account of what took place the night Hayley disappeared. Jake is assigned to track down Tim Finch's ex-wife to hear her version of events - and uncovers disturbing information about Chris Lowe's past. On a personal front, Sunny is offered the opportunity to rekindle his past marriage, and Cassie worries about her father's failing memory.
#22 - Episode 4
Season 1 - Episode 4 - Aired 10/29/2015
The investigation into Jimmy's death continues as Cassie and Sunny question Sir Phillip Cross.
#23 - Episode 4
Season 4 - Episode 4 - Aired 3/15/2021
Cassie and Sunny discover Walsh was chased by all four suspects on the night in question. Willets realises Fiona's blood sample may have been deliberately lost by Liz. The pathologist identifies a cause of death implying Walsh was murdered.
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#24 - Episode 5
Season 1 - Episode 5 - Aired 11/5/2015
As the investigation into Jimmy's death continues, Sir Phillip Cross makes a difficult decision, and Father Robert comes clean to his family and the police.
