Gomer's singing voice surprises everyone, especially Barney.

With Ricky and Fred glued to a TV fight, their wives go to the local cafe, where service is so slow that Lucy makes change for herself at the cash register and the girls are arrested. They finally prove their innocence and get home to husbands who didn't know they were gone.

Ward comes down hard on Wally after he comes home two hours late, this fuels June and Ward's suspicions that Wally is contemplating joining the Merchant Marines. June had discovered some pamphlets hidden in his dresser drawer. However, little does anyone know, Wally has been getting the information for Lumpy who's seriously thinking of joining.

Beaver gets a new girl in his class and is instantly smitten. He begins walking her home from school but he soon realizes that the girl has an agenda on her mind. Her sole purpose is to get close to Beaver in order to get close to Wally. This leads Beaver to accuse Wally of stealing his girl.

The Clampetts finish dining with their Grunion, a surfer boy and a girl, and tell the captives they will let them go. Jethro wants to keep his captured girl, but Jed let’s the two go. At the bank, Drysdale, who tells Helen she must take the blame for his stupid mistakes, decides to get his former secretary back. Helen goes to the beach to try to get Jane back, and finds out the Clampetts still believe Grunion are people, a poor excuse, but people nonetheless.

The Clampetts receive a telegram that says Louellen Aden is coming out to California. When Jed tells Jethro about this, they figure out that she wants to marry Jethro. He gets scared and runs away. Meanwhile, Elly is learning to be a secretary, but is not very good at it. She and Miss Jane go to bring Louellen to the Clampett mansion, and the family learns that she has changed into a lovely young lady.

Gilligan discovers an island bush that produces seeds that when eaten give a person the ability to read the minds of others.

The Howell's plan a party.

When Vint installs baby-monitoring intercoms in the house, the Harpers begin eavesdropping on each other—and it isn't long before everyone is upset!

When Mama believes she's fallen for a wanted criminal, she decides to capture him herself.