Dr. Cheriton has the unenviable task of informing a patient she has little time to live, and the situation soon prompts the wedding of the year. Arriving at the scene of an accident at the railway station, Dr. Ormerod is forced to make a drastic decision, but an oncoming train signals disaster. Gambling fever grips the hospital when a champion jockey is admitted and, as always, Greengrass is in the thick of the furore.