About this programme

4/30. The Coastguard in Stornoway has difficulty finding a walker who has fallen in a secluded spot on the island of Iona, when heat signals from animals interfere with the readings on their infra-red camera. Lt Gillingham is on a training mission when an emergency call comes in from a climber stuck 1,200ft up a rock face, necessitating the use of a risky winching manoeuvre.