As a favor to Jed Mr. Drysdale arranges for a playboy bank director (who normally only dates women half his age) to come court Granny, while Jed goes out with a beautiful woman who dates rich older men.
Granny wants Jed to find a wife and asks for Mr. Drysdale's help. He introduces Jed to Phyllis but learns too late she a gold digger and becomes alarmed when they head to the track. But it's Granny they need to worry about.
Mrs. Drydale's poodle Claude is to enter a dog show but gets sick right before. Granny offers to doctor the dog but Ellie Mae is concerned he doesn't know any tricks so she decides to help out with one of her own pets.
John Brewster, the oilman from Tulsa, is bringing his new bride to California for their honeymoon. Somehow the Clampetts get the idea that their backyard rustic cabin is the ideal place for the Brewsters to stay.
Mr. Brewster, the oil man who made Jed a multi-millionaire, arrives in Beverly Hills with his wife planning to build their dream house. Jed and Granny think they have the perfect house in mind for their dream home.
Mrs. Drysdale thinks she has a new way of getting rid of the Clampetts: talk Jed into donating their mansion to the city for an art museum. They agree, on the assumption that they are supposed to provide the artworks and not move out.
Granny's concocts a love potion for Elly Mae at the same time Mr. Drysdale hires an escort for Elly. Dean arrives at the mansion with the Clampetts believing he's Miss Jane's boyfriend so Granny tries a reverse spell.
Jed and Granny are concerned the young'uns aren't meeting anyone so decide to throw a wing ding. Miss Jane provides the music but the older Clampetts are confused by the band names. A mix between a square dance and rockfest ensues.
Mr. Farquar, Mrs. Drysdale's father comes for a visit. When he's alone with Drysdale, he reveals he's broke. It seems on his way over, he passed through Las Vegas and lost his whole fortune and is asking Drysdale for a handout, which he refuses. He later learns of the Clampetts, he goes there hoping to get some of their money so he can go back to Las Vegas.
Jethro wants to a general and Mr. Drysdale decides the safest idea is to get him into a boys military academy. With Jethro twice the size of the other boys the commander has his doubts while a mock battle confuses Granny and Jed.
When Mr. Drysdale is unhappy with Dr. Clyburn's treatment of his cold the Clampetts hear about it. Granny decides it's time to set up practice and enlists the rest of her family to help. She also claims a cure for the common cold.