It is a sunny bank holiday morning, and cars are hitting the roads in their thousands for a weekend break. But for some holidaymakers, a country jaunt can turn into a nightmare, as the crews of the Great North Air Ambulance know only too well.
The Guardian of the North is called to a mysterious accident, where a woman has been discovered, having crashed in the holiday rush. She is lying bleeding in a wrecked car, and no one knows how long she has been there. A jolly trip to the countryside ends in a disastrous village crash for four teenagers; and when two bikers collide in a remote part of Cumbria, the air ambulance has to join forces with the giant Sea King helicopter in a desperate attempt to reach them.