SOS: Extreme Rescues

An 80-year-old is stuck on Yr Wyddfa. The police helicopter looks for a tourist lost in the dark. And the coastguard races to save a local before the tide sweeps her away.

Cave Rescue race to find teenagers trapped in a mine, Mountain Rescue struggle to reach an injured walker, and teams pull together to rescue a woman who's fallen 20 feet on to rocks.

An injured climber is stuck on a narrow ledge after falling 30 ft; spaniel Buzz runs off a coastal cliff; and a couple's search for a social media hotspot lands them in danger.

Emergency teams race to a gas explosion at a busy marina; an injured biker is stuck in a remote spot; and teams pull together to rescue a lost father and son.

A 15-year-old mountain biker has serious injuries after a downhill crash; a climber is frozen with fear on Eryri's most dangerous ridge; and two French visitors come unstuck.

An injured climber is hanging by ropes after a 20m fall; mountain rescue solve the sad mystery of a missing man; coastguards are called to a dog walker with a dislocated ankle.

A race to rescue eight-year-old twins, parents and grandparents lost in a storm; a sheepdog is stuck on a quarry ledge; and an RAF team help rescue multiple casualties stuck in the snow.

A young couple looking for a hidden hotspot are stranded in the dark; mountain rescue go old-school to find an injured walker; an American visitor bites off more than he can chew.

A woman has multiple injuries after falling 20 feet on Wales's highest peak; a child goes missing on a busy beach; and a small team stretcher an injured man over a fast-flowing river.

A paraglider with vertigo is stuck in the snow on Crib Goch; emergency teams rush to rescue a dog walker caught by flooding; and a cry for help that could be a person, or a goat.

A simple slip on a rocky beach turns into a race against the tide; a birthday outing in the mountains takes an unexpected turn; and things get complicated in a father and son rescue.

New recruits are put to the test rescuing an injured climber; search dog Barney's on the hunt for a missing person; and a 13-year-old schoolgirl dislocates her knee in a gorge.