Opie is being bullied and intimidated on his way to school by Sheldon. He's forcing Opie to pay a nickel to pass by his street. As Opie asks Andy, Barney and Aunt Bee for nickels Andy becomes aware something is wrong. Barney tails him and discovers the truth. Andy must help Opie stand up for his rights without appearing to interfere.
The State's Attorneys Office sends Bob Rogers to Mayberry to work with Andy as a deputy and learn about law enforcement. This doesn't sit well with Barney who feels that Andy has been displeased with his performance and picking on him lately. It isn't long before Barney begins to feel useless and unwanted around the office and offers up his resignation.
Andy, Barney, Opie and Floyd are finishing up a day of fishing when a convertible whizzes past them doing at least 70 on a 45 MPH road. When Andy pulls the car over it is a woman driver from Washington DC. She thinks the Sheriff is just pulling a 'small town speed trap' routine on her. Her attitude winds her up before the Justice of the Peace and in contempt of court. She finds herself in jail and will use all of her feminine wiles to sway the witnesses.
Frank Myers is a kindly old man who lives in a rundown house which the town council feels is an eyesore. He is also delinquent on back taxes and they decide to evict him. Andy is opposed but is forced to serve papers. The Taylors decide to take him in until he can find a permanent place to live. While looking through his valuables Andy finds a 100 year old bond which is redeemable for the face value plus 8 1/2% interest compounded annually. The council panics when they find out the town of Mayberry owes Frank Myers over $349,000 dollars.
Barney is taken with a new girl in town and he and Thelma Lou have a lover's quarrel and declare their freedom from each other. Barney decides he is going to play the field and begins seeing the new girl. Things move a little too fast for him and before you know it he's engaged. He'll need Andy's help to get out of it and back into the good graces of Thelma Lou.
Andy and Opie are going fishing when they come across a wanderer who impresses Opie with his good humor and 'magic fish talk'. The man's name is Dave Browne and it isn't long before Barney hauls him before Andy for vagrancy. Dave isn't booked and he continues to form a bond with Opie. Opie soon begins to pick up his bad habits such as avoiding work and playing hooky to go fishing. This concerns Andy who must break up this friendship and get Opie back on the right track.
The town of Mayberry is awarded with having the lowest crime rate in the country. Two men posing as an FBI agent and press photographer come to Mayberry to congratulate the town. Andy, Barney, and the rest of the town do not realize that the two are actually imposters and partners in crime preparing to rob the Mayberry Bank. Andy discovers during the award ceremony that all is not what it seems, and catches the photographer in the act of opening the vault. Barney, naturally agrees with Andy's findings after first gleaming in the glory of his and Andy's sharp police ...
Barney and Thelma Lou want to set Andy up on a blind date with her cousin Karen. Andy is somewhat skeptical of Barney's matchmaking skills but after some clumsy maneuvering on Barney's part agrees to meet Karen. Much to every one's delight they really hit it off with each other. However, Barney's interference could cause more trouble than good.
Aunt Bee has hired Mr. Wheeler to help with the flowers around the Taylor home. Andy's not to sure about him but Aunt Bee is quite taken with him. When Andy notices how taken with him Aunt Bee is he relaxes and agrees to let him stay on and help around the house. Once he's in good his easy going manner seems to become more of a 'lazy going' manner and Andy is stuck doing most of the work.
Roger Courtney invites Andy to come up to the state capital and meet the membership committee of The Esquire club and be considered for membership. Andy accepts the offer but tells him he'll be bringing Barney along also. Barney is very excited at the prospect of joining this exclusive club but he's worried that Andy may need a bit of polishing. Andy wants to be himself when meeting the club but Barney insists on putting on airs to impress them...which of course backfires.
Aunt Bee and Clara Johnson are both jarring homemade pickles. The only difference is that Clara's are good enough to have won the blue ribbon at the fair eleven years counting while Aunt Bee's taste like they've been floating in kerosene. The boys are too polite to tell Aunt bee the truth about her pickles and come up with a plan to switch Aunt Bee's pickles with store bought pickles. The plan backfires when Bee decides to enter her pickles in the contest.
Barney, Floyd, and other townspeople are convinced that local resident Henry Bennett is responsible for many mishaps that have occurred in Mayberry. Andy attempts to convince Henry that he is not a jinx by having him join himself and Barney in their boat for the opening day fishing sweepstakes. When this idea backfires, Andy must come up with the perfect plan to convince Henry once and for all that he is not a jinx before he thinks of moving out of Mayberry.
The state police come to town to catch some payroll robbers. They want Andy and Barney to stay out of the way and let them handle it. The big boys end up needing Andy and Barney more than they thought.
Opie decides that he's going to enter the 50 yard dash at the Sheriff's Day boys' races and he convinces himself that he's going to win. For Opie, nothing would be greater that winning that medal. He dreams about winning and even prays for a win. Barney doesn't help things by telling him about the time he won a medal in a footrace as a boy and offers to train him for the race, guaranteeing him a win. When Opie comes in last, he is despondent and goes home in a grump. Andy tries to explain to him the meaning of being a good loser but Opie won't hear of it; that medal ...
The town decides to celebrate Founders' Day by picking a stranger at random to be the town's 'Guest of Honor'. Unfortunately the person they choose turns out to be a thief whose just been kicked out of the neighboring county.
With the jail full after the arrest of the four Gordon brothers for moonshining, Andy is faced with what to do with Otis when he shows up after his weekly drunk. The Gordons are angry with Otis for having changed liquor suppliers so leaving him with them is out of the question. Left with little choice, he takes Otis home with him to serve his sentence. Aunt Bee is a little disconcerted at first but when Andy tells her that she's in charge of the prisoner, she takes to making him do chores around the house like washing floors and windows, cutting the grass and chopping...