Action drama starring Paul Walker and RZA. Set in a run-down Detroit City, where crime is rife, the local authorities have built a containment wall around derelict brick mansions which are being used by ruthless criminals including gang leader Tremaine (RZA). Police officer Damien Collier (Walker) goes undercover to infiltrate Tremaine's gang and put a stop to his plan to destroy the city. Damien also has a personal vendetta against the crime boss, who murdered his father, as does former convict Lino (David Belle), whose girlfriend has been kidnapped by Tremaine. Damien and Lino form an unlikely partnership as they attempt to seek vengeance while preventing the destruction of the city.