When the State police arrest two of four bank robbers, they decide to keep them in the Mayberry jail. Andy is to join the search for the two remaining criminals and agrees with Barney's suggestion that they get a third man to help them. Without consulting Andy, Barney hires Gomer. Andy isn't convinced they can do the job but gives in to Barney's assurances that all will be okay. In fact, the two experienced criminals have Barney right where they want him.