Barney disguises himself as a dummy in an attempt to solve a series of theft at the Mayberry department store.
Ben complains to Andy that merchandise has been disappearing from his store. While Andy investigates, Barney goes undercover to catch the crooks.
Barney suffers an ego blow when Gomer out-sings him for a part in the Mayberry Choir. Andy Griffith's wife, Barbara, appears in this episode as a member of the singing group.
Andy takes a week off, leaving Barney and Gomer in charge. A prisoner also takes off in the resultant confusion.
Andy and Barney have to protect a shipment of gold on its way to Fort Knox. Barney spills the beans, and within minutes, all of Mayberry knows.
Ron Howard's real-life father and younger brother appear, as Mayberry gets involved with a gold shipment en route to Fort Knox.
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