A magic stone makes Wembley grow big. He runs out of Fraggle Rock and into the Gorgs' Garden where Junior Gorg mistakens him for a cousin Gorg.

Where No Fraggle Has Gone Before: Wembley make an expedition to climb to the tallest spire of the Gorg's castle in order to reach the top of the Universe.

When Gobo begins to question his importance of drawing up maps, he is visited by Cantus the Minstrel. Cantus places Gobo into a trance where Gobo awakens in the time of prehistoric Fraggles where he befriends prehistoric versions of his four friends.

Mokey's poetic reading of her newly written "Ode to Water" receives an alarming reception. Fraggle Rock is flooded due to Doc's latest plumbing mishap.

The same events are viewed from the perspective of the Doozers. Cotterpin Doozer saves the day as the little creatures discover their own unique way of dealing with the Fraggle Rock flood.

Mokey enjoys making up new words for the Fraggle dictionary and enlists the aid of Convincing John to convince everyone to make up a new vocabulary.

Boober finds the Funniest Joke in the Universe that causes any Fraggle that listens to it to laugh endlessly.

After making too many decisive decisions, Wembley comes down with a case of Wembliosis. The only cure for it is a good scare.