Grandma is initially frustrated by Jethro's attempts to help Duke, the family dog, who has lost his sense of smell. She believes that Jethro should be helping her with chores, not trying to fix Duke. Grandma's insistence on traditional methods and dislike of Jethro's modern approach create conflict.
The main idea of the episode revolves around Duke's unexpected parenthood and the excitement and chaos it creates. The family is concerned about Duke's increasingly impaired sense of smell. Ellie May finds a litter of puppies, but their mother is nowhere to be found. Duke, believing them to be his, enthusiastically takes on the role of father.
The family, especially Jethro, focuses on preparing Duke for his new "litter" of puppies. Amidst the excitement of the new babies, and the impending arrival of Mr. Drysdale's quintet, an exciting situation unfolds. The family is soon overwhelmed by the prospect of naming the five children, and a heated debate ensues. There are also humorous incidents with a French woman; Mr. Clampett's flirtations and misunderstandings with a French guest, Mademoiselle Denise, add further comic elements. Several characters discuss suitable names for the baby, leading to amusing and sometimes tense interactions.
Conflicting ideas and communication difficulties arise with Mademoiselle Denise Bouchard, a French guest. Misunderstandings and misunderstandings surround her visit. Her intentions and messages to Mr. Clampett can be interpreted in many different ways.
The episode ends with a humorous resolution. The family and the visiting Mademoiselle Denise have finally resolved their misunderstandings. The episode ends with the implication that Duke will be a wonderful father to his new puppies, and there is hope for continued domestic happiness at the Clampett estate in Beverly Hills for the foreseeable future.