After Opie accidentally kills a mother bird with his new slingshot, he takes on the job of raising her babies himself. He grows very attached to them, but then has to set them free when they fledge.
Ernest T. Bass causes a ruckus when he decides to join the army. When Andy and Barney find out why, they are able to solve his problem - with a little help from Barney.
A visiting preacher tells the town to relax and enjoy the simple pleasures of life. He inspires everyone to have an old-time band concert. With all the stress of rebuilding the broken-down bandstand and getting ragged uniforms ready, they wear themselves out.
After being treated to Aunt Bee's hospitality and home cooking, Briscoe Darling decides he is going to marry her. He even resorts to kidnapping her. Andy comes up with a clever solution to the whole mess.
After Gomer gets fired from the filling station (losing his room there), he moves in with Andy. When people come by the house at all hours of the night to get their cars looked at, Andy knows he has to do something.
A mistake by Opie's teacher causes him to get all A's on his report card. He finds out the truth, but everyone is so proud of him (he even receives a new bike) he can't figure out how to break the news without disappointing them all.
Barney's landlady evicts him and he has to move into the back room of the courthouse. When she withdraws all her money and decides to marry someone she just met, Barney suspects she is the victim of a con man.
Gomer makes a citizen's arrest of Barney for committing the same traffic violation that Barney just ticketed him for. This causes Barney to overreact, resigning as deputy and demanding a jail sentence in lieu of paying the fine. When Gomer finds out how far it has gone, he tries to come up with a solution.
After Andy and Helen go exploring in a cave, it collapses behind them. They find another way out, but hear on the radio that Barney has mobilized the town to rescue them. They go back into the cave to save Barney from becoming a laughingstock.
In order to help Ernest T. Bass find a girl, Andy and Barney attempt to teach him some manners and get him dressed up. Then they try to pass him off at a party as Andy's cousin from Raleigh.
Barney is the only tenor in the choir. When a tenor solo part is required the choir director is desperate to find someone else to sing the part. Gomer becomes the replacement.
Ben Weaver complains to the Mayberry sheriff's office that merchandise has been disappearing from his department store. While Andy investigates, Barney decides to go undercover to catch the crook(s).
To save money, Aunt Bee buys a side of beef from a discount butcher shop. When she gets it home, the freezer doesn't work right but she won't pay 'the man' from Mount Pilot to come and fix it.
Two fun-loving girls from Mount Pilot interrupt Andy and Barney's late-night office work. When Helen and Thelma Lou see them together, they get upset and cancel their dates to the big dance. Barney decides he and Andy will take the fun girls instead.
When Malcolm Merriweather returns to Mayberry, Andy hires him to help Aunt Bee with the housework so she can be a 'lady of leisure'. She goes from being overworked to feeling unneeded.
Barney sees Andy and Helen in the jewelry store sneaking a kiss and tells everyone they are engaged. Aunt Bee redecorates Andy's room for a bride and throws a big surprise party for them.
Gomer joins the Marines to test himself as a man. Andy drives him to the base and stays around for a while to see how it works out. When he finds out the Sergeant plans to get Gomer sent home, he tries to find a way to get the Sergeant on Gomer's side.
