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In this crime drama, a pair of investigators work to solve a homicide that has been buried for almost four decades. When a skeleton is found beneath a house, it unearths a crime that had been forgotten, but the investigators are determined to solve the mystery before it can be forgotten again.

Unforgotten is a series that is currently running and has 3 seasons (23 episodes). The series first aired on October 8, 2015.

Unforgotten is available for streaming on the website, both individual episodes and full seasons. You can also watch Unforgotten on demand atAmazon Prime, Amazon, PBS, Vudu, Google Play, iTunes online.

Sunday at 9:00 PM on PBS
3 Seasons, 23 Episodes
October 8, 2015
Crime Drama Mystery
Cast: Nicola Walker, Sanjeev Bhaskar, Lewis Reeves, Jordan Long
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Unforgotten Full Episode Guide

  • Cassie and Sunny call James, Tim and Chris back for further questioning following the revelation that they have all lied about their whereabouts on the night of Hayley's disappearance. With Pete having said he saw Eliot climbing back into the holiday home through the window in the early hours of New Year's Day, the focus is on James as Cassie and Sunny suspect his son may have accidentally killed Hayley whilst driving erratically. Meanwhile, Fran thinks she has cracked a code in Hayley's diary.

  • It becomes clear that the four male suspects have colluded in lying about their version of events on the night Hayley went missing. Jake speaks to Tim Finch's ex-wife to hear her version of events and the team uncover some disturbing information about Chris Lowe's past. Meanwhile, Sunny's ex-wife makes advances towards him and Cassie is becoming increasingly worried about her dad's memory loss.

  • Peter, Chris, James and Tim are all interviewed by Cassie and Sunny about the time they spent renting a holiday cottage near where Hayley disappeared over the turn of the millennium. James is the first to be called in, and reveals that Tim and Chris both had their families with them at the time. He recalls seeing press coverage of Hayley's disappearance, but never having seen her in person. Meanwhile, Chris is looking at flats with Jamila, who resolves that she needs to know everything about his past before she will take their relationship further.

  • Cassie, Sunny and the team travel to Middenham to meet Hayley's parents and twin sister, Jessica. The press are already circling in the area and it's clear that unearthing Hayley's body will bring the whole investigation back into the media spotlight.

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

  • Director Andy Wilson, writer and executive producer Chris Lang, Nicola Walker and Sanjeev Bhaskar reminisce about the filming of the Season 3 opening scene.

  • Writer and executive producer Chris Lang, director Andy Wilson, and several cast members explain the lure of making the media and social media integral to the investigation.

  • Chris Lang, writer and executive producer, explains why and how the filming locations are chosen, which adds to the realism of the show.

  • Actors James Fleet, Alex Jennings, Kevin McNally, and Neil Morrissey introduce their characters, the four main suspects of Season 3.

  • With each of the suspects having a motive, opportunity or connection to victim, David Walker, Cassie and Sunny try to join the dots to discover who actually killed him 25 years earlier.

  • In the penultimate episode of the series, Cassie turns her attention to investigating the goings-on at the Brentford house and the theory that one or more of the suspects may have been abused at the gatherings that took place there.

  • 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.

  • 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.

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

  • The new series starts with the discovery of body found in a sealed suitcase in the silt of the River Lea. With the body preserved but clearly having been there a number of years, DCI Cassie Stuart and DI Sunny Khan begin the complicated task of identifying the victim and investigating his murder.With an expensive watch found on the body the only evidence to go on, the item is sent to forensics who suggest approaching a watchmaker who may have repaired it to find out more about its owner.Meanwhile, we meet four seemingly un-connected suspects who may have a link to the victim - DI Tessa Nixon who is struggling with her loner son, nurse Marion Kelsey who works with chronically ill children, Brighton-based barrister Colin Osborne who is in the process of adopting a little girl with his husband, and teacher Sara Mahmoud who is interviewing for a new position in a school that needs turning around. How do any of them link to the victim, though, and why would one of them kill him?