Dental director Dr Brian Chittick operates on one of his own colleagues who has two troublesome wisdom teeth that need to be removed.

A group of off-duty junior doctors and medical students take a trip to the island of Fetlar. With almost perpetual daylight, they are looking forward to a midnight swim.

Jean, the community nurse on the little archipelago of Out Skerries, is out on her rounds seeing patients and delivering medicine as a one-woman health service.