

A storm sweeps in and an entire family disappears, eight-year-old twins, their parents and their grandparents, all separated and all unaccounted for on an exposed mountain.

An 80-year-old woman is stranded 100 metres down a cliff on Yr Wyddfa with no safe way to reach her.

What starts as a routine slip on a rocky beach quickly becomes a race against the tide as water begins closing in around the injured casualty. The coastguard helicopter identifies a narrow window to winch the person to safety before the sea covers the beach entirely - and that window is shrinking fast. A rescue that looked straightforward from the air becomes a high-pressure operation against one of the most relentless forces in nature. Timing is everything.

New recruits are thrown straight into live operations when a climber dislocates his shoulder on a technical route. Their training has prepared them - but nothing fully prepares you for the real thing. As they work to assess, treat and evacuate the casualty across difficult terrain, the experienced team watches every decision closely. A rescue that is straightforward by some standards becomes a defining moment for the next generation of mountain rescuers stepping up for the first time.