The programme that reconstructs dramatic real-life rescues returns for a new six-part series. This week, the battle to save a boy trapped at the bottom of a swimming pool, the remarkable story of a Scottish fisherman who severed a leg in a freak accident at sea, and the gas explosion that left an elderly woman buried in an unstable block of flats.

This week the fight for survival of two young climbers buried in a snowhole, the race to save a scaffolder who fell onto a concrete platform in the middle of the River Severn, and the freak accident that left a Scottish policeman trapped inside a blazing tent.

This week's stories include the accident in which a 78-year-old man was impaled by a pool cue, and the amateur pilot whose plane plummeted nose-first out of the sky.

This week's stories include the race to find a new heart for a critically ill one-year-old boy; a woman forced to take extreme measures when she started choking and was unable to breathe; and amateur pilots lost in cloud and unable to land.

This week's stories include the fight to save a teenager impaled through the chest on a rusty bolt; an 81-year-old woman stranded in a car teetering over the edge of a 120-footdrop; and a helicopter forced to land on a narrow sea wall to rescue an injured boy.

This week's stories include the terrifying experience of a man stuck in quicksand, the ordeal of two teenagers who see their parents trapped on the motorway in their crashed car, and a double helicopter rescue of a young woman who plunged 180 feet down a cliff face.