DS Sarah Collins and her colleague, DC Steve Bradshaw, investigate the deaths of a long-serving police officer and a 15-year-old Libyan refugee.
S1 E1: Episode 1
S1 E2: Episode 2
With Lizzie still on the run, Sarah finally persuades her boss to go public about Lizzie’s disappearance, then makes a series of discoveries.
S1 E3: Episode 3
The explosive truth about what really happened on top of the tower emerges.
S2 E1: Episode 1
Sarah investigates a cold case while Lizzie responds to a domestic violence call.
S2 E2: Episode 2
Sarah and Lizzie work together to hunt a killer. A new suspect emerges in the Tania case.
S2 E3: Episode 3
As the manhunt closes in on Brannon, Sarah realises where Tania’s body might be buried.
S2 E4: Episode 4
Lizzie and Brannon come face to face and Sarah finally tracks down Tania’s killer.
S3 E1: Episode 1
Sarah investigates the death of a teenage boy and comes into conflict with an undercover unit led by Kieran.
S3 E2: Episode 2
A brutal stabbing leads Sarah to unsettle an undercover unit led by Kieran Shaw.
S3 E3: Episode 3
Kieran and Bailie share information to help Sarah make an arrest while Shakiel tests Steve's loyalty.
S3 E4: Episode 4
The culmination of years of painstaking investigation is upon Kieran, Steve, and Operation Perseus.
S0 E0:
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