In Southampton, a Friday night in town descends into violence, and Sergeant Nicolas Tucker is left helpless on the floor after he is punched. Elsewhere in County Durham, PC Caryn Fairburn is on shift when she and her colleague are asked to respond to an argument.

Officers in North Yorkshire responding to a report of anti-social behaviour have to deal with a violent bystander as well, who breaks the leg of an officer while resisting arrest. In North Wales, a police van on its way to a domestic disturbance call-out is flagged down by a member of the public, who alerts the officers to a drunken confrontation between two groups of young people.

A policeman is a victim of extreme road rage; a female officer is punched when she races to save a taxi driver; and a man spits in the face of a Nottingham copper.