A new series returns as we follow the brave A&E night-shift teams in Belfast, Newham and Norwich. At Norfolk and Norwich Hospital, a stabbing sends both victim and attacker to A&E.

In Belfast's Royal Victoria A&E, a drunken patient sparks chaos in the waiting room.

A&E staff struggle to deal with an abusive man who claims he's swallowed a pack of heroin.

Doctors assess an 84-year-old woman left confused and vomiting after hitting her head.

Doctors have minutes to save a man's sight in East London after a violent attack.

An 81-year-old woman arrives with a horrific open fracture that shocks even the nurses.

A woman is rushed to A&E after being found in the street having a serious drug reaction.

In Belfast, teenager Jack suffers spinal shock after a catastrophic motorcycle collision.

Police are called to Belfast's Royal Victoria when a female patient becomes aggressive.

Doctors treat a non-verbal young man in a life-threatening neurological emergency.

A semi-pro boxer is rushed in after blacking out from heavy blows to the head.