Dark days have come over an island. The population suffers from a plague that brings just about everything to a standstill. Government offices and schools are shut down, and even stores are forced to cut back as their employees and customers fall ill. The sneezing and coughing, the chills at night, the listlessness are all signs that the dreaded flu has struck. Only one person seems immune to the malaise that has swept the island-a man who has been immunized the year before. When one of the townspeople does some research and finds a way to bring in vaccine, the population is at last delivered from darkness. The same blessings can be ours, the drama suggests to us, if we are inoculated against the flu.