Steph is trapped with multiple injuries after a bad smash near Alnwick in Northumberland. An accident with a bonfire leaves Paul with serious burns. And in Thetford Forest in Norfolk, it's difficult for the medics to reach horse-rider Alice, who has badly broken her ankle.

Mountain-biker Ivan sustains a serious head injury in a fall in a remote part of a forest. In Teesside, four-year-old Abithan needs strong pain relief when he breaks his thigh bone. And 84-year-old farmer Derek fractures a previous hip replacement when he falls off a ladder.

Britain's air ambulance teams race to bring the hospital emergency department to where it's urgently needed. Mick is put into an induced coma after suffering a cardiac arrest on the tennis court. Fell-runner Michael is seriously injured by cows in Cumbria. And helicopter medics face danger as they treat Adrian, who's been crushed by a collapsed wall.

The air ambulance teams are called out to help Dennis, who's having a heart attack. A spin on her bike has catastrophic consequences for Carolyn. And there's a dramatic night-time car crash in Norfolk.

The air ambulance teams battle to save cyclist Graham's partially amputated leg. Rose is freed from a rolled car in Buckinghamshire. And Gary suffers a rare and extremely serious complete knee dislocation playing football but strong pain relief results in some unexpected hilarity.

Some strong pain relief results in unexpected hilarity following a serious footballing injury. Meanwhile, Rose is freed from a rolled car.

In Sunderland, medics must work quickly to try and save Susan's life following a major gas explosion. A boating accident on the Norfolk Broads leaves holidaymaker Carol with a partially amputated foot. And Kevin suffers multiple serious injuries when he comes off his motorbike.

The air ambulance teams race to help farmer Dennis, who's been pierced in the chest by a metal spike, motorcyclist Ian, who's crashed in the Lake District, and toddler Alistair, who is badly scalded

In this episode, medics use battlefield dressings to try to save the life of a man who's bleeding to death. Nine-year-old Ar-Rayyan has been hit by a car and has a nasty head injury. And a fall leaves septuagenarian Bonnie with a severely fractured ankle.

In this first episode, two motorcyclists need specialist care, as the helicopter medics try to save the life of Pete, while Tom may have a serious spinal injury. And a woman is kicked in the face by her horse.