The Clampett clan takes great offense when Sonny Drysdale jilts Elly May, and they start a feud with the Drysdales to avenge their kinfolk's honor. When Jed goes to the Commerce Bank to talk to Drysdale, everyone thinks he's a robber and he gets arrested. Mr. Drysdale says he will get Sonny to propose, but Elly says she doesn't want to marry him. Lyle Talbot and Ken Drake appear as a psychiatrists interviewing Jed in jail.

The Clampetts take their first plane flight back home for Christmas to visit cousin Pearl, who is busy cooking up a feast to win Mr. Brewster's unwilling heart. Mr. Brewster insults Pearl when he asks her to be his housekeeper, while she thought it was going to be a proposal.

Back home for Christmas, Elly May bonds with her old animal friends. Pearl plays the piano for the "new" movie in town (the silent version of Ben Hur) to impress Mr. Brewster. While Mr. Brewster tries to sneak out of the movie, Homer Winch declares his love for Pearl.

Mr. Brewster doesn't want to get married, but the whole county knows that Cousin Pearl had her heart set for him. Jed comes up with a plan for her to save face by having Mr. Brewster propose in public and then have her turn him down. Jed didn't count on Mr. Brewster's background in the theater and him making a huge production out of it. Mr. Brewster does such a convincing job that Pearl, after repeatedly saying no, then says yes.

The Clampetts pack up to return to Beverly Hills, so Jethrine tries to pack Jazzbo Depew. Elly says goodbye to her animals. Back in Beverly Hills, Miss Hathaway dresses the vamp to meet Jethro at the airport. Once home the feuding starts between Granny and Pearl over who's running Granny's kitchen.

Granny and Cousin Pearl are at each other's throats over who's going to take care of cooking and the house, so Jed has to find ways to keep them apart. Jed tries to calm things down by taking a sightseeing tour of Beverly Hills.

Mrs. Drysdale leaves for a health farm saying Mr. Drysdale is "going to have a new wife" when she returns. Mr. Drysdale tells Cousin Pearl he'd like her to be his housekeeper. However, the Clampett's think he wants to marry Pearl, so Jed comes up with a plan to "save" the Drysdale's marriage.

Many animals and even the police respond to the unique sounds from Pearl's yodeling lessons.

Two of Pearl's most ardent former suitors come to visit her in Beverly Hills. Pearl thinks they're there to propose because a letter they sent mentions an engagement. But, the duo were actually referring to a concert they have in the Los Angeles area and in fact are already married. Jed throws a wingding for them and the duo play music for the Clampetts.

Granny can't stand Pearl's yodeling so she reports her to the police. When one of the officers takes Pearl outside to the squad car, Granny thinks she got Pearl in trouble and becomes sad and contrite. Meanwhile, the police find Granny's still, and new trouble results.

Granny says Jed and Duke his dog are both down without a woman in their lives. French woman Mlle. Denise and her poodle that she brought to breed with Mrs. Drysdale's dog arrive. Duke takes a fancy to the poodle and Jed takes a fancy to Denise. Meanwhile Mrs. Drysdale has arranged a "marriage" between her dog Claude and Mlle. Denise's, complete with a decorated bedroom.

Miss Hathaway's brilliant-but-frumpy bank protegee Gloria (Lola Albright) is really a sultry gold-digger with eyes for Jed's $34 million, and Jed's just had his annual dose of Granny's spring tonic. Pearl and Granny are a little suspicious of her. Gloria claims that she has to marry a mountain man. Seeing through her scheme, Jed says that's a good idea, but she'll have to wait 3 or 4 years until Jethro is old enough.