Chris drives a frontline response vehicle in his fragmented hometown of Liverpool. Night after night he faces crime, violence, and addiction on the streets, whilst battling against personal demons that threaten to destabilize his work, his marriage, and his mental health. The dark humor is sometimes painfully tragic, and always challenging. When Chris is forced to take on new rookie partner Rachel, both soon discover that survival in this high-pressure, relentless, twilight world depends on them either helping or destroying each other. From the depths of helplessness and despair, with his own family slipping away from him, Chris clings to the idea of saving the life of a young addict trapped in a deadly dilemma. If he can save her, maybe he can save himself and rediscover what it means to be a police officer.