
Andy Taylor is the widower sheriff of the small, sleepy North Carolina town of Mayberry. Andy and son Opie live with Aunt Bee, who takes care of the family. Andy's deputy is his bumbling but neurotically hilarious cousin, Barney Fife. Among Andy's Mayberry friends is the town's resident barber, Floyd.
Opie gets straight A's on his report card, much to Andy's delight. But when Opie finds out that his teacher made an error, he cannot figure out how to tell the truth without disappointing his father.
Barney moves into the courthouse jail after his landlady evicts him. When he learns that she is planning to sell her home and marry someone she just met, Barney suspects that she is the victim of a con man.
Barney orders Gomer and Otis to keep watch on Andy when an ex-con Andy sent to prison many years before returns to Mayberry.
Thelma Lou refuses to go with Barney to the town's upcoming dance unless he gets her visiting cousin Mary Grace a date. Just when he and Barney are about to give up, Gomer appears.