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.

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.

An article written up about Andy attracts the attention of a Hollywood film crew who come to make a television show about him. Andy is flattered, until he notices the crew's strange fascination with the Mayberry town bank.