Episodes
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Episode 1
S4 E1 - 46m 12s
Parts of a body are found in a scrapyard. 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.
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Episode 2
S4 E2 - 45m 20s
Cassie and Sunny identify four potential suspects who trained as police officers together, and two of them are still serving. 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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Episode 3
S4 E3 - 45m 4s
Cassie and Sunny interview the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his death, and Collier manages to locate the rest of Walsh’s body.
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Episode 4
S4 E4 - 45m 16s
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. The pathologist identifies a cause of death implying Walsh was murdered.
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Episode 5
S4 E5 - 45m 26s
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.
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Episode 6
S4 E6 - 44m 53s
Despite a tragic turn of events, the team narrows down the suspects. Will they find conclusive proof of who the murder weapon belonged to and succeed in bringing Walsh’s killer to justice?
Extras + Features
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Official Teaser
S4 - 1m 30s
The most dramatic season yet begs the question: who exactly is fighting for justice? Season 4 premieres on Sunday, July 11 at 9/8c on MASTERPIECE on PBS.
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Where We Left Off
S4 - 1m 59s
Take a look back on where we left off before the explosively dramatic new season.
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Previously On Unforgotten
S4 - 2m 27s
Get a refresher on the dramatic events of Season 3 and the harrowing finale that left the team forever shaken.
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Sunny's Backpack
S4 E1 - 1m 23s
Sanjeev Bhaskar explains the social media hype about Sunny's iconic backpack, and how it has evolved over the years.
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The Music
S4 E1 - 3m 42s
Join series star Sanjeev Bhaskar on a grand tour of the iconic Abbey Road Studios, where the show music is recorded.
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Preview
S4 E2 - 30s
Cassie and Sunny identify four potential suspects who trained as police officers together, and two of them are still serving. 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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The Murder
S4 E2 - 2m 27s
Nicola Walker and Sanjeev Bhaskar describe the gruesome murder at the center of Season 4 and the mystery Cassie and Sunny must unravel.
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Preview
S4 E3 - 30s
Cassie and Sunny interview the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his death, and Collier manages to locate the rest of Walsh’s body.
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The Suspects
S4 E3 - 2m 50s
New crime, new suspects. Meet the murder suspects of Season 4! Liz White, Phaldut Sharma, Andy Nyman, and Susan Lynch introduce their mysterious characters and the threads that tie them all together.
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Cassie's Journey
S4 E4 - 2m 6s
Nicola Walker walks us through the emotional journey of Cassie Stuart over the years, and the toll it has taken on the hard working DCI.
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Preview
S4 E4 - 30s
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. The pathologist identifies a cause of death implying Walsh was murdered.
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Preview
S4 E5 - 30s
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.
Schedule
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