Andy, Barney and Gomer take a group of boys camping in the mountains to show them the pioneer life. Barney winds up getting himself and Gomer lost in the woods, and it's up to Andy to save the day.

Gomer comes to the courthouse one day with an announcement—he has decided to join the Marines, believing it a test of his manhood.

Sgt. Carter's adopted Korean daughter arrives, but she's not the little girl he remembers. What's more, he begins to fear she and Gomer are planning marriage.

Opie develops a crush on his teacher, Helen Crump, at the school dance. He spends .74 cents to buy her a gift.

Barney learns that in order to pass the mandatory physical for the deputy's office, he must weigh more and be taller. Andy and Aunt Bee try to stretch him and fatten him up, until Andy comes up with the solution.

Gomer and Sgt. Carter take the exam for the officer's training program.

The Taylors quickly realize why they haven't invited Bee's sister and her husband, Ollie, for a visit in more than a decade. When Uncle Ollie borrows Andy's squad car to go fishing, it's the final straw.