The Clampetts are determined to help the nation solve the smog problem. When Jed offers to give his millions to President Nixon for the cause, Mr. Drysdale resorts to some outrageous schemes to keep the money in his bank.

After Honest John explains to Jed why they couldn't visit the White House, he sells them other Washington landmarks each conveniently only $1 million. Mr. Drysdale finds out and sends Miss Jane to bring the Clampetts home.