Danny Harvey played by Scott Adkins returns to London in order to find the killer of his younger brother who has been killed during a pre-arranged fights between rival football gangs. Harvey has rejected football related violence but plans to gain his revenge by turning his unfit and overweight firm, the Green Street Elite, based on the supporters of West Ham United FC, into a fighting force using the training methods of mixed martial arts and beat their opposing firm, supporters of their arch-enemies, based on the supporters of Millwall FC. Victor, played by Joey Ansah, is the martial artists expert who takes on the role of training the fighters.[1]