George Bull is a doctor in the small country town of New Winton. Dr. Bull spends most of his waking hours going from one house call to the next. What little free time he has is spent with his best friend Janet, a widow of five years, leading to much gossip amongst the townspeople.
Dr. Bull discovers a typhoid epidemic in New Winton and vaccinates the schoolchildren. This leads to the parents holding a town meeting to recall Dr. Bull. Fed up with the long hours and constant complaints, Dr. Bull tells them he doesn't care if he gets kicked out of town. However, the town meeting is adjourned without dismissing Dr. Bull.
After a serum he whipped up cures a cow of its paralysis, Dr. Bull tries it on a paralyzed man. The man walks again. Dr. Bull confesses his love toward Janet. They get married, and as they board the train to their honeymoon, they receive news that the medical community is astonished at Dr. Bull's new paralysis cure.