Mayor Pike (Dick Elliott) and the townspeople are shocked to discover that the last living descendant of Revolutionary War hero Nathan Tibbs is Mayberry's town drunk, Otis Campbell.

The Ricardos and Mertzes head for California. But first, of course, there are complications. The chief one: Lucy's mother, who shows up and wants to accompany them. Ricky objects (to put it mildly).

Beaver wants to raise chinchillas and begins building a cage in the garage. However, when Beaver changes his mind, Ward tries his best to get Wally and Beaver to clean up the mess. Things get worse when Ward unknowingly runs over some of the wood and nails left laying around with the car, causing the boys to try to patch a flat tire before Ward finds out.

While Beaver is staying at the Mondellos, Larry sneaks a peak at his sister's diary and his mother discovers him and yells at him right in front of Beaver. This prompts Larry to run away to Beaver's house, where Beaver secretly hides him in his bathroom.

An ill-fated three-hour tour aboard the S.S. Minnow shipwrecks seven castaways on a uncharted island. Gilligan and the Skipper set out on a flimsy raft to find civilization.

A hurricane is coming, so the castaways build a hut for all, but tensions mount and soon they all build their own huts.

Mama reluctantly agrees to let her son, Vint, and his two children move in after they are evicted from their apartment. This creates problems for Fran, and she eventually threatens to move out.

After Naomi spends the night in the basement with Vint, Mama tries to break up the relationship. But the two decide to get married instead and plan to have the ceremony in the Harper home.

"A retired circus owner gathers her old acts together for 5-year reunion, dangerously aware that one of the performers wants her dead on Fantasy Island. An amateur bowler fulfills his dream of competing with the world's best professional bowlers on Fantasy Island."