Scott & Bailey - Season 4

Syndicate 9's new Sergeant is thrown in the deep end with a historical missing person's case. Their biggest challenge is to hide their contempt for the poor police work that hampered the original investigation. Janet keeps Gill's secret but shares another secret with Rachel. And when Mandy Sweeting's body is discovered, 23 years after she went missing, the new Sergeant takes on huge proportions.

After promising that the chaos of her personal life was behind her, Rachel is torn when she discovers that her mother's new boyfriend is a violent domestic abuser. Janet goes on her first date, but gets cold feet at the last minute. The murder of a gay man has all the markings of a hate crime, but why is his friend struggling to answer some simple questions?

Gill introduces her new sergeant to Will Pemberton, an ambitious detective superintendent on his way to the top. Unbeknownst to her, Rachel and Will have been enjoying a passionate yet discreet affair. The case of the week involves the murder of a woman in a Manchester hotel. With only a necklace and the name Lola to go on, Syndicate 9 try to piece together her last known movements.

Unable to get over being second choice for the sergeant's job, Rachel punishes Janet for not telling her. After Elise moves in with Ade, Janet feels inadequate as a mother although she has not given up on the idea of a boyfriend entirely. And when an unconscious baby is admitted to hospital, staff are concerned that his injuries do not match his parents' explanation.

Troubled by Gill's comments about her relationship with Will Pemberton, Rachel gets cold feet about accompanying him to an awards ceremony. When a couple are shot at close range in their pub in the early hours, their son Simon feels utterly alone, having lost his sister Carla when he was three.

Janet is unnerved to discover that DSI Dodson cannot ignore her concerns about Gill's drinking. Just as Rachel feels as if she is getting to grips with the job, she makes a fatal error that puts Janet and Chris in danger. When a man's body is found wedged between rocks on the moors with nothing to identify him, a road block is set up and an appeal put out.

The discovery of slaves on the Pritchard farm has turned a murder inquiry into a huge, multi-agency investigation. Under investigation for the crash, a devastated Janet finds solace in Chris's calm reasoning. When an incandescent Evie Pritchard smells alcohol on DCI Gill Murray's breath, she has all the ammunition she needs to discredit both the investigation and Gill.