Barney tries to train Blue, a bloodhound, to track criminals. His plan backfires when he leads Blue to a criminal and the dog starts obeying him instead of Barney.
Barney and Thelma Lou have an argument. When Andy tries to console Barney, it leads to a parade of other arguments among Andy, Barney, Thelma Lou and Helen.
Opie finds a purse containing $50, but Andy tells him that the money will only be his if no one claims it within a week. Soon, Opie gets the money but has to return it.
Andy lets Barney take over as sheriff for a day when he goes to Raleigh to attend a job interview. By the time he returns, Barney has turned the whole town upside down.