Season 3: Season 3

    When a 16-year-old girl’s remains are discovered, Cassie and Sunny work to track down the killer. The investigation leads to a tight-knit group of four old school friends whose bonds are put to the test when they find themselves under suspicion.

    Video thumbnail: Unforgotten Episode 1Passport

    Unforgotten

    Episode 1

    Cassie and Sunny work to identify human remains found buried near a London motorway.

    Episode 1

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    Unforgotten

    Episode 2

    The team travel to Middenham to meet Hayley’s family.

    Episode 2

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    Unforgotten

    Episode 3

    Cassie and Sunny interview four men while the team returns to the original investigation.

    Episode 3

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    Unforgotten

    Episode 4

    Cassie and Sunny suspect the men are lying. The press learn James has been questioned.

    Episode 4

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    Unforgotten

    Episode 5

    As Cassie and Sunny get closer to the truth, the case takes a devastating turn for Cassie.

    Episode 5

    Video thumbnail: Unforgotten Episode 6

    Unforgotten

    Episode 6

    The team race to find evidence to prove the identity of Hayley’s killer.

    Episode 6