Sam Peel (Noel Clarke), recently released from a six-and-a-half-year prison term for murder, wants to atone for his crime. His old girlfriend, Claire (Madeleine Fairley) has a new man, and some of his friends have moved on with their lives. His friend Jay (Adam Deacon) is dealing drugs and plagued with his own violent demons. Sam begins a relationship with Lexi (Scarlett Alice Johnson), an addict who helps Sam find those who are out to harm his family. Sam is tormented with guilt and sorrow, and those he has wronged are seeking revenge. Will Sam be able to protect his family, and will he survive?