E1 • Episode 1

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.

47m • 2021

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.

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.

45m • 2021

With Lizzie still on the run, Sarah finally persuades her boss to go public about Lizzie’s disappearance, then makes a series of discoveries.

E3 • Episode 3

The explosive truth about what really happened on top of the tower emerges.

46m • 2021

The explosive truth about what really happened on top of the tower emerges.

E1 • Episode 1

Sarah investigates a cold case while Lizzie responds to a domestic violence call.

46m • 2023

Sarah investigates a cold case while Lizzie responds to a domestic violence call.

E2 • Episode 2

Sarah and Lizzie work together to hunt a killer. A new suspect emerges in the Tania case.

45m • 2023

Sarah and Lizzie work together to hunt a killer. A new suspect emerges in the Tania case.

E3 • Episode 3

As the manhunt closes in on Brannon, Sarah realises where Tania’s body might be buried.

45m • 2023

As the manhunt closes in on Brannon, Sarah realises where Tania’s body might be buried.

E4 • Episode 4

Lizzie and Brannon come face to face and Sarah finally tracks down Tania’s killer.

45m • 2023

Lizzie and Brannon come face to face and Sarah finally tracks down Tania’s killer.

E1 • Episode 1

Sarah investigates the death of a teenage boy and comes into conflict with an undercover unit led by Kieran.

46m • 2024

Sarah investigates the death of a teenage boy and comes into conflict with an undercover unit led by Kieran.

E2 • Episode 2

A brutal stabbing leads Sarah to unsettle an undercover unit led by Kieran Shaw.

46m • 2024

A brutal stabbing leads Sarah to unsettle an undercover unit led by Kieran Shaw.

E3 • Episode 3

Kieran and Bailie share information to help Sarah make an arrest while Shakiel tests Steve's loyalty.

46m • 2024

Kieran and Bailie share information to help Sarah make an arrest while Shakiel tests Steve's loyalty.

E4 • Episode 4

The culmination of years of painstaking investigation is upon Kieran, Steve, and Operation Perseus.

47m • 2024

The culmination of years of painstaking investigation is upon Kieran, Steve, and Operation Perseus.