Synopsis

Detective Sergeant Sarah Collins arrives at the scene of a vicious stabbing, the victim a teenager. Her investigation quickly becomes entangled with a clandestine operation spearheaded by Kieran Shaw, who is collaborating with Sarah’s former partner, Steve Bradshaw – now operating in deep cover. Simultaneously, Lizzie Adama returns to Farlow, striving to reconcile her new responsibilities as a detective with the demands of family life, unaware that her trajectory is about to intersect with Kiera