HAPPY!: Season 1

Catherine Cawood is a sergeant in the Calder Valley in West Yorkshire that is riddled with a drug culture that is daunting to tackle. She lives with her sister, Clare, a recovering heroin addict, and is bringing up her eight-year-old grandson, Ryan. Whilst visiting Ryan's teacher regarding the boy's behavioural problems, Catherine reveals that his father is a man called Tommy Lee Royce, who raped her daughter Becky. Catherine believes that the rape was what drove her daughter to suicide shortly

Overcome with guilt, Kevin confesses everything to his wife, Jenny, who urges him not to take his cut of the ransom money, though he is reluctant to refuse it. Nevison asks Kevin to help deliver the ransom money to the kidnappers without alerting the police (at Cowgill's request), so Kevin delivers the first portion in person. When checking on Ann, Whippey learns that Royce has raped her. After spotting Royce, but quickly losing track of him, Catherine seeks the help of local businesses to find

Young police officer and Catherine's protégé, Kirsten McAskill, pulls over a speeding van being driven by Whippey. After asking him to open the back door (where Ann is being held temporarily), Kirsten is murdered by Royce. Cowgill panics and fears being caught to the point of contemplating abandoning the plot altogether. Nevison's wife Helen urges him to inform the police of the kidnapping, but he refuses due to being fearful that disobeying the kidnappers would further endanger Ann. Whippey dem

After Cowgill had ordered Royce to "dispose" of Ann, Royce chose to keep her in his mother's cellar instead, rather than kill her. Helen and Nevison finally inform the police about the kidnapping, but Catherine says that it is unlikely that Ann will be released alive. He tells Catherine and Phil Crabtree, a Detective Inspector with the National Crime Agency, that Kevin has been delivering the money to service stations and that the kidnappers specifically requested for Kevin to do so; this alarms

Catherine fights for her life in hospital after Royce's attack, which police are treating as attempted murder of a police officer. Royce informs Cowgill that Ann has escaped, so Cowgill cuts off contact with him and Whippey, who then become fugitives. After questioning, Kevin is arrested on suspicion of "abduction and demanding money with menaces" when detectives learn that he was lying about where the money had been delivered. Cowgill is later arrested for the same offence, but is released afte

Catherine visits Nevison at his work and tells him about Ann being raped by Royce. Nevison is devastated but agrees with Catherine that Helen doesn't need to know. Clare invites family and friends to a birthday party for an acquiescing Catherine, but tensions rise when Daniel lets slip some information about her now-deceased daughter and Royce's relationship thereby implying that Catherine's assessment of Becky's rape leading to her suicide may be incorrect. Cowgill is shot dead the day before h

Whilst investigating a case of sheep rustling, Catherine discovers the decomposed body of Lynn Dewhurst, Tommy Lee Royce's mother. Dewhurst was raped and murdered some weeks before, with the time of death unable to be precisely determined. To her irritation, Catherine is treated as a suspect in Dewhurst's murder because of her relation to Royce, and Catherine having threatened her after an altercation about Ryan. She is asked to provide alibis for the times of death of two other murders in circu

Whilst remaining a suspect in the Lynn Dewhurst investigation, Catherine successfully rescues 21 female trafficking victims. One of them, Ilinka, is given refuge with Catherine’s neighbour Winnie. With vital information on those behind the trafficking, Ilinka reluctantly speaks to the police, and the identity of one of the murder victims is revealed. After talking with Ilinka, Andy Shepherd tells Catherine that she fears she has been followed, and security features are installed in Winnie's hous