Cassie and Sunny call James, Tim and Chris back in for questioning following the revelation that they have all lied about their whereabouts on the night of Hayley's disappearance.

Contains strong language from the outset.

Unforgotten

Six-part crime drama that links four seemingly unconnected suspects. When a skeleton is unearthed, a car key found near the body is the only clue to the identity of the victim.

Unforgotten - Series 1 - Episode 1

Episode 1

unforgotten

EPISODE

Crime drama about an unsolved murder case. DCI Cassie Stuart begins to identify the people mentioned in the diary of Jimmy Sullivan.

Unforgotten - Series 1 - Episode 2

Episode 2

Crime drama. As the investigation into Jimmy's death continues, Cassie and Sunny visit Father Robert Greaves in a bid to identify the mysterious Jo-Jo.

Unforgotten - Series 1 - Episode 3

Episode 3

Drama series following two detectives as they unravel a cold case murder. The investigation into Jimmy's death continues as Cassie and Sunny question Sir Phillip Cross.

Unforgotten - Series 1 - Episode 4

Episode 4

Crime drama. 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.

Unforgotten - Series 1 - Episode 5

Episode 5

Crime drama. As the investigation into Jimmy's death concludes, Father Robert finds that revealing the truth has lasting repercussions and Maureen lays her son Jimmy to rest.

Unforgotten - Series 1 - Episode 6

Episode 6

Series 1

Gripping crime drama series. Detectives Cassie and Sunny reunite as they take on a case concerning the remains of a body found locked in a suitcase in the River Lea.

Unforgotten - Series 2 - Episode 1

Gripping crime drama series. Detectives Cassie and Sunny begin to find out a bit more about who David Walker was through speaking to his ex-wife Tessa.

Unforgotten - Series 2 - Episode 2

Crime drama series. Enquiries into David Walker's past suggest that he was a troubled man with a number of issues. Meanwhile, Marion has a prickly chat with Cassie about her past.

Unforgotten - Series 2 - Episode 3

Crime drama series. A disturbing allegation about David opens up a second line of enquiry for the team. Meanwhile, Marion gets into trouble at work and jeopardises her marriage.

Unforgotten - Series 2 - Episode 4

Crime drama series. Cassie investigates the Brentford house and the theory that one or more of the suspects may have been abused at the gatherings that took place there.

Unforgotten - Series 2 - Episode 5

Conclusion of the crime drama series. Having come to another dead end, Cassie and Sunny work on trying to prove a final theory into David Walker's death and catch the culprit.

Unforgotten - Series 2 - Episode 6

Series 2

When human remains are found buried in the central reservation of the M1, Cassie and Sunny begin the task of identifying them.

Unforgotten - Series 3 - Episode 1

The search for what happened to Hayley begins as the team travel down to Middenham to meet her family.

Unforgotten - Series 3 - Episode 2

Cassie and Sunny begin interviewing the four male occupants of The Spinney whilst the rest of the team look at the timelines and leads from the original investigation.

Unforgotten - Series 3 - Episode 3

Cassie and Sunny realise the men all lied about that night and a mistake of Cassie's has devastating consequences for one of the suspects.

Unforgotten - Series 3 - Episode 4

Unforgotten - Series 3 - Episode 5

Under the glare of the media spotlight, the team races to find the evidence to prove the identity of Hayley's killer.

Unforgotten - Series 3 - Episode 6

Series 3

When a headless body is found on a scrap heap the team identify the victim: Matthew Walsh. Cassie wants to retire but to get her full pension she is forced to return to work.

Unforgotten - Series 4 - Episode 1

Cassie and Sunny identify four suspects who trained as police probationers together; two of them are still serving police officers. They have no luck finding the rest of the body. They make the discovery of Walsh's body public.

Unforgotten - Series 4 - Episode 2

Cassie and Sunny interview each of the four suspects to see if they knew the victim. Bouting discovers Walsh was cautioned three weeks before his death.

Unforgotten - Series 4 - Episode 3

Cassie and Sunny discover Walsh was chased, and Willets realises a blood sample may have been deliberately lost.

Unforgotten - Series 4 - Episode 4

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. Unexpectedly, things take a devastating turn for Cassie.

Unforgotten - Series 4 - Episode 5

Despite a tragic turn of events, Sunny and the team narrow down the suspects. Will they find conclusive proof of who the murder weapon belonged to and succeed in bringing Walsh's killer to justice?

Unforgotten - Series 4 - Episode 6

Series 4

When a severed leg is discovered inside a chimney, the team get to work identifying the victim - meanwhile, Cassie's replacement has a rocky start with Sunny.

Unforgotten - Series 5 - Episode 1

The team work to identify the body found in the chimney flue as forensics reveal the cause of death.

Unforgotten - Series 5 - Episode 2

The 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 to butt heads.

Unforgotten - Series 5 - Episode 3

Sunny 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 son are put under the microscope.

Unforgotten - Series 5 - Episode 4

Despite the trouble in their personal lives, Sunny and Jess attempt a reset as they follow the clues in the case.

Unforgotten - Series 5 - Episode 5

Can Sunny, Jess and the team bring the clues in the case together and unravel the secrets to solve it?