A veteran beat cop and teenage girl fall to their deaths from a tower block in south-east London, leaving a five-year-old boy and rookie police officer Lizzie Griffiths on the roof, only for them to go missing. Detective Sergeant Sarah Collins is drafted in to investigate, working to find Lizzie before she comes to serious harm, but also to uncover the truth behind the grisly tower block deaths.
3 seasons · 11 episodes
S3 E1Episode 1
Sep 2, 202448 min
DS Sarah Collins is called to the brutal stabbing of a teenager, but her investigation soon finds itself at cross purposes with a covert operation led by Kieran Shaw, who is working with Sarah's old partner Steve Bradshaw, now deep undercov
S3 E2Episode 2
Sep 3, 202446 min
Sarah and Elaine uncover a disturbing link between their ongoing investigation and a brutal hit-and-run. Kieran urges Lizzie not to reveal the secrets of Operation Perseus.
S3 E3Episode 3
Sep 4, 202447 min
Kieran and Baillie share some information that could help Sarah make an arrest but her reluctance to cooperate leaves them exasperated. Shakiel puts Steve's loyalty to the test.
S3 E4Episode 4
Sep 5, 202447 min
Operation Perseus reaches its climax as Kieran prepares to catch Shakiel with a car-load of automatic weapons. However, Spencer's killer, Jermaine King, has escaped from custody and kidnapped Ryan's sister, Tia.
Gemma Whelan
DS Sarah Collins
Tahirah Sharif
PC Lizzie Adama
Jimmy Akingbola
DC Steve Bradshaw
Emmett J. Scanlan
DI Kieran Shaw
Michael Karim
PC Arif Johar
Laurie Delaney
Mary Shaw
Bobby Lockwood
DC Lee Coutts
Ella Smith
DS Elaine Lucas
Karl Davies
DCI Tim Bailie
Robin Morrissey
Sgt Fred Thompson
Stuart McQuarrie
DCI Jim Fedden
Camilla Beeput
Julie Woodson
