Ambulance: Code Red

42-year-old Adam has a broken leg after a fall at work; 22-year-old Luke has a potentially life-threatening irregular heartbeat, and a young child stops breathing after a seizure.

Critical care teams race to save lives as a 61-year-old is injured in a motorcycle crash, a new mum haemorrhages days after giving birth, and a 12-year-old suffers severe leg injuries.

A man suffers repeated cardiac arrests as medics fight to save him, while paramedics rush to treat another man severely burned by a gas canister explosion on a bonfire.

Paramedics race to High Wycombe where a handyman has fallen 18ft from a ladder, risking catastrophic internal injuries. Elsewhere, 53-year-old Paula has had a suspected stroke.

21-year-old Ryan loses his helmet and suffers serious injuries after a motorcycle accident and a toddler suffers a seizure so severe he's placed in an induced coma.

A 41-year-old man is thrown 10 feet in the air after a motorbike accident, leaving him critically injured. A 5-year-old girl suffers a terrifying seizure, possibly caused by sepsis.