An outbreak of measles means extra work for Dr. Finlay, and Dr. Snoddie adds to the burden by demanding that the relevant paperwork is brought up to date immediately. Then Dr. Cameron takes to his bed with what he thinks is measles and Finlay diagnoses as a heavy cold. To make matters worse Finlay is called out urgently to Ian Grant, the greengrocer's son. Not knowing young Grant has deserted from a Military Hospital because the surgeon is going to amputate his leg, Finlay rushes him to the local hospital and calls in a specialist.