Pearl returns to Beverly Hills with reports of Jethrine’s wedding, who has eloped with Jasper Depew. Jethro comes home from school early, saying he needs a Certificate Of Health to return to school. The family tries to come up with a doctor, and Jethro comes up with the doctor Mrs. Drysdale has been seeing, Dr. Twombly, a psychiatrist. Jethro meets with Twombly, who asks him about his family, not getting any good answers. Jethro returns home and tells Pearl that the doctor wants to meet her. But when Pearl meets with the doctor, she mistakes his actions, closing the curtains and inviting her to the couch, as advances. Jed visits Twombly to get him to come to the mansion and apologize, and Twombly agrees, being utterly fascinated by the Clampetts. Granny questions him of his medical abilities, throwing out mountain illnesses and cures, which the psychiatrist knows nothing about. After a few misunderstandings, including Elly’s new jaguar, which the doctor thinks is a car, the doctor runs out.