Bayliss tries to rescue a girl trapped in a cave, but finds the only way out is to crawl through a series of tunnels. Doughan, McLanaghan and Annie Craig come to the aid of a group of fallen rope climbers. Doughan is displeased to discover that his mother is consulting at the hospital. Annie faces a tough test. Despite their differences, McLanaghan and Nurse Helen decide to go out for a meal.