A solo walker from London thought Tryfan would be a fun day out - now he is stranded with no phone signal, no map, and no way to call for help. Simultaneously, a man lies injured beside a remote waterfall in a spot where no one is likely to find him. And out at sea, a holidaymaker on a rubber dinghy is drifting further from shore with every passing minute. Three people in three very different kinds of danger - and the rescue teams must reach them all.
A massive multi-team operation is launched to find a missing person as weather conditions deteriorate fast. Then an extraordinary coincidence puts help exactly where it is needed - the only thing standing between a hypothermic walker and death in a raging mountain storm. And elsewhere, one wrong turn sends a group of young friends into serious and unexpected danger. It is a night that tests the limits of every rescue team in North Wales.
Deep in the remote Glyderau mountains, a rock crushes a man's leg and his friend faces an agonising decision - stay by his side or go for help. An injured woman is found on the hillside but fights every attempt to carry her to safety. And a father and son, lost in thick mountain mist, get an unexpected lifeline from a stranger passing at just the right moment. Three very different rescues - each one pushing the teams in different ways.
Rescuers are searching for an injured man who may have taken hallucinogens - someone with no sense of the danger he is in and no ability to help himself be found. Two climbers are trapped on a sheer ledge with darkness closing in and no torches between them. And a family takes a wrong turn on one of Wales' most unforgiving peaks, turning a day out into a frightening ordeal. The teams have seen a lot - but tonight throws them something different.