In Southampton, a Friday night in town descends into violence. Sergeant Nicolas Tucker is single-crewed and the first on scene. He identifies a suspect, but before he can cuff the person, he is left helpless on the floor after someone sucker punches him.

In North Wales, officers respond to a domestic incident when their police van is flagged down by the public. In North Yorkshire, officers responding to reports of anti-social behaviour soon find themselves dealing with an aggressive passer-by.

In North Wales, a desperate gang of suspected burglars try to smash a police vehicle with bricks as they attempt to escape capture. In Hereford, police driving past a local nightclub see a bouncer being verbally abused and stop to help.

There's violence in London when a man slashes a London bobby, an officer is kicked in the groin, and a late-night patrol ends with a police officer in a choke hold.

An arrest turns violent for 3 officers, two men attack police sent to help them, and a new MET recruit is attacked on her first day without her mentor.

Two officers are called to a property in Llanelli and are taken by surprise when a man armed with a knife runs out of the house and threatens them. Elsewhere, in Stoke-on-Trent, Sgt Durose and a colleague respond to a 99 call.

Officers are under attack when a gang attempts to ram into a police car; a man gets too close and tries to grab an officer's crotch; MET police decide on how to confront and counter the violence they face nearly every day.

In North Wales a single crewed officer spots a gang of suspected burglars. The gang make off in a powerful car and PC Emma Birrell gives chase. A high-speed pursuit follows, and the desperate gang try to smash the police vehicle with bricks, before ramming it at speed. But PC Birrell has back-up and the suspects are left having to flee on foot.