Danny Dyer explores the life of Dominic Negus, a former professional boxer who became a notorious gangland enforcer in London's East End. The film delves into the complex intersection of Negus's boxing career and his criminal activities, examining how his pursuit of respect and reputation led him down a path of violence and eventual downfall. Through interviews and firsthand accounts, the documentary paints a compelling portrait of a man caught between two worlds, struggling to reconcile his past with his present.