After playing golf with Jethro, Los Angeles Dodgers coach Leo Durocher wants to sign him as a pitcher, when he sees how well he can throw.

Jed arranges a party to get Granny out of her doldrums and invites the Drysdales. Mr. Drysdale's boss wants to come along to meet them, hearing how sophisticated they are. The boss is thrilled with what he believes to be a "Hillbilly Party" thrown for him.

James and Mabel Johnson back into the Clampett's car outside of the Commerce Bank. After they discover that the Clampetts are rich, they fake injuries and sue the Clampetts. During the trial, the couple's story begins to sound made up. Things really unravel when Mabel learns about James's girlfriend.

Jethro finally gets his bill of health from Dr. Twombly so he can graduate the fifth grade. The psychiatrist shows great interest in Granny's home remedies for various ailments. Drysdale brings him to the Clampetts' just as Granny shows Pearl how to use a love potion, so everyone thinks Twombly's interest in Granny is love.

When Miss Hathaway gets sick and Mr. Drysdale has to speak at a conference, Jed helps out by running the bank and having Elly be his secretary, while Jethro finds a speech that Drysdale accidentally uses instead of his own. All the while a new teller sucks-up to the men and flirts with the women. Jed lends money to a Mr. Wilson, who claims to be a poor chicken rancher. Because of that, Mr. Drysdale is named "Banker of the Year".