This episode of The Beverly Hillbillies revolves around Jethro's need for a school fitness certificate, which leads to a humorous encounter with a psychiatrist, Dr. Twombly.
Jethro needs a doctor's certificate to graduate from fifth grade. He visits Dr. Twombly, a Beverly Hills psychiatrist, but the consultation takes an unexpected turn.
Dr. Twombly, known for his unconventional methods, probes Jethro's psyche, focusing on his thoughts and feelings about his family and his cousin Elly Mae. Jethro confesses a surprising level of hostility toward Elly Mae.
Mrs. Clampett, as usual, confidently predicts rain, seemingly defying modern weather forecasting, but her forecasts and predictions ultimately prove correct.
The episode alludes to a possible love spell being cast on Jethro, leading to doubts about his attraction to certain individuals, particularly Elly Mae. A humorous clash between Granny's superstitious methods and modern scientific methods provides some laughs.
Jethro's interactions with Dr. Twombly reveal his unique perspective on family dynamics and societal expectations. His love for his family, especially his mother, grandmother, and Uncle Jed, is highlighted.
Jethro eventually earns his license, and the episode ends with a brief reference to the difficulty of the psychiatrist's position in trying to understand the Clampett family and their unique values. It is implied that Dr. Twombly initially fails to understand the relationships between the family members.