Youth crime and drugs are rife in London and Scotland Yard is having trouble dealing with it. A new force is in play within the underworld, namely the gangland leader Carl Frazer (Viggo Mortensen) - an American who is an expert at turning young men into ruthless gangsters. Scotland Yard call in an advisor from the American DEA John Harris (Harvey Keitel) to help the London police to break up the organisation. Harris arrives in London to find nothing different from the LA he just left...