A nine-year-old boy named Charlie McCarthy is sent by his teacher to an eye doctor. The lad has been complaining about headaches and has missed a lot of school. The doctor, with the help of a nurse, conducts an examination. They learn that when the boy isn't at school, he does a lot of fishing. In the course of the exam, the doctor recommends glasses, and Charlie convinces the doc to accompany him on a trip.
A hobo named the Professor and his son, Charlie McCarthy, believe there's money buried in an abandoned house which was previously owned by a fellow named Herbie Larkin. Pretending to be Herbie's brother, the Professor dreams of finding the money by consulting a gypsy fortune teller, who conjures up more than Charlie likes. The reality of the situation eventually sets in.
Patient Charlie McCarthy, running a fever, is tended by Doctor Edgar Bergen. Will a tonsillectomy cure him?
