After thieves botch an armored truck robbery that leads to the death of an innocent young girl, her father vows revenge by recruiting a sociopathic hitman to track them down and assassinate them.

Will Graham is a former London crime boss who has left his former life to live as a recluse in the forest. Haunted by the blood of those he has murdered, Will wishes never to return. But when his brother commits suicide following a sexual assault at the hands of a volatile car dealer, Will returns to London to discover the cause of his brother's death and administer justice to those responsible.