This tense medical science series details the critical life or death decisions facing doctors in the first hour of emergency care. Each episode follows three patients from the moment the 999 call is made. From then on, frontline doctors and paramedics have to work posthaste to treat the injuries and keep the patient alive. The series is both compelling and engaging, combining medical detail with suspenseful actuality.

The three patients in this episode are Christy from Bristol, a pedestrian who was hit by a car and has suspected bruising to the front and back of her brain; lorry driver Peter, who was run over by a forklift truck and now cannot move his legs; and Jacqueline from London, a back-seat passenger who was involved in a bad road traffic collision and now has a severe open skull fracture on her forehead. Not for the squeamish.