Loner Sam and his ambitious sister, Gina, live in a decaying steel town in South Wales. Since the death of their father twelve years earlier, the two have taken divergent paths. Gina has a promising career in the police force, but Sam's life is going nowhere, until one day he gets his hands on a gun. Emboldened by newfound confidence, he begins to commit increasingly daring crimes.

Eighteen months ago, mother-of-three Faith had her cozy life thrown into chaos after the disappearance of her husband, Evan. Still striving to keep her family together, Faith must fulfill Evan's debt to a vicious crime family even as she fights her attraction to a former client. Then a local farmer is found dead, and his wife, Madlen, is arrested for his murder.