After a series of mishaps, Barney declares that Mayberry resident Henry Bennett is a "jinx." Andy sets out to prove him wrong -- but begins to believe it himself after the troubles continue.

Barney becomes convinced the Mayberry bank is ripe for a robbery and tries to prove his point by staging a fake one. When he discovers a weak spot in the security system, he unknowing relays this information to a couple of actual robbers.

A new boy named Quincy moves into town and starts getting Opie and his friends into trouble. When Opie is dared to break a streetlight, he refuses and is teased mercilessly. Andy tries to help by telling the boy's parents, but Opie sees that it's up to him to stand up to Quincy once and for all.

All of Mayberry turns out to welcome a truck carrying gold to Fort Knox as it passes through town. When Barney sneaks a closer look at the loot, he sees that there may not be as much to celebrate as everyone thought.

Andy and Barney must find a shoplifter that's been hitting Ben Weaver's store, so Barney volunteers to dress up as a mannequin. He ends up accusing a little old lady and is ridiculed for another one of his famous blunders by everyone except Andy, who believes he might be onto something.