When Jackie Ellis, a former detective now working as a teacher, discovers a student dead, her estranged partner, Detective Sergeant Bull, returns to the case to investigate.

Long-held grievances reemerge, forcing Jackie and Bull to confront a history of mutual suspicion. The fragile peace of the town hangs precariously, threatened by the escalating tensions poised to erupt into open conflict.

As the town fractured under the weight of unearthed secrets, Jackie and Bull’s precarious alliance faced a fresh, daunting challenge.

The DNA evidence revealed a truth so devastating it fractured their world, compelling Jackie and Bull to confront a stark choice: self-preservation or the safety of those they held dear.

The rising floodwaters isolate Morfa Halen, severing its connection to the outside world. The discovery of a further body deepens the mystery, as Bull draws closer to uncovering the truth behind an illicit operation that binds all three inc…

Jackie and Bull uncover the chilling truth underpinning the crimes that have long shadowed Morfa. As Bull struggles to survive, and Jackie confronts a devastating dilemma, the storm intensifies to a furious climax.