After being humiliated by a bit of humorous graffitti, Barney decides to turn in his badge citing Mayberry's lack of any real crime. Unable to convince Barney to stay, Andy decides to stage a robbery at Walker's Drug Store to lift old Barn's spirits and hopefully give him enough confidence to ask the girl he's sweet on, Miss Rosemary, out for a date.
Much to Andy's surprise, Barney makes an actual arrest in the staged robbery. Caught between a rock and hard place, Andy runs a background check on the man Barney arrests and finds out he's actually wanted in another state. Having nabbed a real live crook Barney then gets up the gumption to ask Miss Rosemary out.