Granny is trying to get a man for her spinster granddaughter Elly May because she is past her prime – fourteen. She creates a love potion to conjure a man.
Meanwhile, Drysdale is taking matters into his own hands. He has hired a professional escort for Elly May, and expects Miss Jane to come up with a plan to set them up. When Jane and Dean, the escort, leave to work on their plan, Jed sees them together and figures he is Miss Jane's man.
When Jed talks to Drysdale about Granny's plan to get a man out of this air, he decides to get the Clampetts to believe Dean was conjured there.
When Dean arrives, Granny dresses Elly like a young girl to keep him there. But when Jed sees the man, he realizes that it is Miss Jane's man. So they work to get rid of him, even getting Jane a new guy, Jethro, and finally just solve the problem by revealing the real adult Elly May and give him Miss Jane dressed in the young girl's outfit Elly had on.