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.