Extras

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Cassie and Sunny discover Walsh was chased by all four suspects on the night in question.

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The Suspects

New crime, new suspects. Meet the murder suspects of Season 4!

The Suspects

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Cassie and Sunny interview the four suspects, who all deny knowing the victim.

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Cassie and Sunny identify four potential suspects who trained as police officers together.

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The Murder

Nicola Walker and Sanjeev Bhaskar describe the gruesome murder in Season 4.

The Murder

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Sunny's Backpack

Sanjeev Bhaskar explains the social media hype about Sunny's iconic backpack.

Sunny's Backpack

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The Music

Join Sanjeev Bhaskar on a tour of Abbey Road Studios, where the show music is recorded.

The Music

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Previously On Unforgotten

Get a refresher on the dramatic events of Season 3 and the harrowing finale.

Previously On Unforgotten

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Where We Left Off

Take a look back on where we left off before the explosively dramatic new season.

Where We Left Off

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Official Teaser

The most dramatic season yet begs the question: who exactly is fighting for justice?

Official Teaser