Unforgotten Episode Rating Graph

Despite a tragic turn of events, Sunny and the team narrow down the suspects.

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.

Following the discovery of seemingly incriminating items found at his house, Tim insists he bought them for his girls at a fete in Middenham. However, the team are not buying Tim's story. A new discovery leaves the team shocked and devastated, hitting Cassie particularly hard.

James, Tim and Chris are exposed as having lied about their whereabouts on the night Hayley died. Pete reveals that he saw Eliot climbing into the holiday home through a window on New Year's Day, while leaves James struggling with the possibility that his son may have killed Hayley. Fran cracks a code in the dead girl's diary, suggesting that she met a local drug dealer on the night she disappeared.

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.

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.

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.

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.

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.

When a skeleton is unearthed, a car key found near the body is the only clue to the identity of the victim.

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.

DCI Cassie Stuart begins to identify the people mentioned in the diary of Jimmy Sullivan.

As the investigation in to Jimmy's death continues, Cassie and Sunny visit Father Robert Greaves hoping to identify the mysterious Jo-Jo.

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. As the pair begin the complicated task of trying to identify the body, the stories of four people with apparent links to the victim begin to unfold. Old wounds are reopened when the detectives track down the victim's wife and son, who have been in the dark about his disappearance for 26 years. Who wanted the man dead and why?

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.

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.

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.

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.