When Opie brings home a bad mark in arithmetic, Andy, fearing the boy will not get into college, puts too much pressure on him to study.

After Lucy is tricked into buying a bunch of clay at an art store, she is dead set on becoming a sculptor. When her first attempts fail and with Ricky threatening to take away her clay if she can't impress his art critic friend, Lucy devises a scheme to ensure her success as an artist.

Ward's Uncle Billy arrives in Mayfield for a visit and begins telling Wally and Beaver exaggerated stories. Not realizing this, Beaver expects Billy to come through after promising Beaver a fishing reel.

Wally's latest girlfriend is Julie Foster, who just happens to be the daughter of a Mr. Foster, who teaches English. Meanwhile, at school, a new semester lands Wally in Mr. Foster's class and he quickly finds himself feeling uncomfortable—especially after Eddie tells him that his relationship with Julie will determine his grades.

Drysdale is trying to get Jed to go back to America, but Jed wants to stay. Granny is intent on going, too, until Jethro tells her he started the War of the Roses. She wants to stay and feud, but Jed wants to go home before a war starts. Jethro decides to live like Robin Hood since he was robbed of his birth right. After they arrive back home, he, Elly and Bessie head to Griffith Park to live like Robin Hood and his Merry Men.

Jethro is still playing Robin Hood in Griffith Park, along with Elly and Bessie, and the Clampetts are trying to get them back. But Jethro is finally getting his band of Merry Men, and women, after Buddy the hippie brings his friends from the Sunset Strip. While they are having fun, Jed, Granny, Drysdale and Jane enter the woods to look for Jethro and Elly. Drysdale stays with the car and gets captured while Jed, Granny and Jane are away. Jethro and his Merry Men make Drysdale join them.

During Christmas, the castaways get homesick and recall the day they were shipwrecked.

Mr. Howell loses $3 million to Gilligan in a golfing contest.

When Mama forms a family council to vote on a bedroom switch, the results create havoc for the household.

Bubba comes home drunk, triggering painful memories in Mama regarding an embarrassing "drunken" incident with Eunice.