Jethro considers he must do something to eradicate smog from L.A. and comes up with a new car. Drysdale concocts a scheme to convince Jed of returning his money. He uses a comedian to impersonate President Nixon.
Believing that the President will accept their donation to fight smog, the Clampetts head straight to Washington, only to be arrested before they can meet the President.
The poor Clampetts are thrown into a psychiatric ward after being labeled as paranoiacs. Still they persist on their idea of meeting the President.
Granny distrusts Mark Templeton, Elly's latest suitor. She considers the man something of a freak: half-man, half-frog.
When Granny learns that Elly's suitor is teaching him to be a frogwoman, she runs as hell to help the poor girl shun her fate.
Jed wants to become a frogman as well so he starts taking lessons. Granny, still confused about all this stuff, believes he's also got under a spell.
Drysdale attempts to win the Clampetts' favor through Mark but the navy officer suggests the banker to donate a sum on behalf of the oceanography. Drysdale gets angry and throws Mark out of his office.
Granny's boundless imagination leads her to imagine the poor Shorty has transformed into a seal.
Drysdale's scheme to discredit Mark have the Clampetts quite convinced they're at war.
The Clampetts head to beach in order to face the onslaught of warring aliens. Surfers become the victims of this misunderstanding.
Drysdale persuades the hillbillies to remain waging the war against the Grunions.On the other hand, at his bank the secretaries rally to protest their situation.
Drysdale's secretaries form a group known as GRUN to express publicly their demand for better work conditions. The Clampetts join them in their efforts.
Granny and Elly May ally with other women's lib supporters to resist against a Karate expert and his minions, Jed and Jethro.
Female Clampetts part company with Jed and Jethro leaving them on their own in the mansion.
Guest Stars: Fuji
as Banzai Sakito
Elly begins working at Drysdale's bank and becomes close friends with Ms. Hathaway. Eventually Elly May moves into Ms. Hathaway's flat.
Jethro steals away as his former ugly girlfriend announces she's coming to visit the Clampetts.