Series in six episodes by G.K. Saunders
The action takes place in and around the guides' hut 4,000 feet up in the Southern Alps of present-day New Zealand.

Jacky Rothwell, the junior guide, has a secret fear of noise. While out climbing with Ted and Bruno in a blizzard, he faints and slips down the side of a precipice - this intensifies his fear. Later, when accompanying a party of schoolgirls on the glacier, there is an accident...