Air ambulance crews race to mountain emergencies in the Lake District, as a walker goes into cardiac arrest on the banks of Ullswater and a biker is injured on a remote road.

A man suffers multiple injuries after a quad-bike accident on a farm near Penrith. Elsewhere, suspected anaphylaxis following a bee sting has the medics racing to the aid of Melody.

The heli-medics race to Linda, who has suffered a heart attack on a Norfolk beach, while motocross rider Alex is in a bad way after he's hit by another bike.

In Hertfordshire, the heli-medics help a man who is fighting for his life following a cardiac arrest. A tumble on an obstacle course leaves Vijitha with a painful open fracture.

A freak car accident in Cumbria leaves Richard fighting for his life. In Hampshire, horse rider Pat takes a nasty fall when her animal is spooked.

In County Durham heli-medics battle to keep Mick alive after he suffers a massive seizure. And in the Yorkshire Dales there's a dramatic hillside rescue for seriously-injured paraglider.