Burton introduces the episode by talking about cavern and cave exploring. The featured book, "The Magic School Bus Inside The Earth", is narrated by Keshia Knight Pulliam. Eccentric Ms. Frizzle takes her students on a science field trip to the center of the earth while teaching them about geology. Burton then visits California Caverns, where he learns about stalagmites, stalactites, and other crystal formations and goes spelunking with a cave expert.
LeVar takes a journey aboard a fishing boat to explore small ocean wildlife, such as plankton, sea horses, and small sharks as he learns information from oceanographers about caring for the seas and oceans. Leslie Uggams reads the featured story of a fisherman who decides to educate his neighbors about prevention of water pollution after he must rescue a small seal trapped in debris.
Wheels are set in motion for this program. In-line skating, then a brand-new commodity, get featured side-by-side with bicycles. Tom Matsusaka narrates The Bicycle Man, a story about an American soldier who visits Japan and performs amazing tricks on a bicycle.
LeVar visits a famed wax sculpture museum, where an expert wax artist makes a statue of him. Julia Child reads the story of two children helping their grandmother plan a party, and how they accidentally mistake a fancy decorated hat for a cake decorated in the same way.
A hurricane of the coast of Florida in 1662 caused the Atocha, a Spanish galleon to sink. This book describes the many-years-long search for the treasure believed to be on it. Also contains The Atocha, The Titanic and book reviews for The Titanic: Lost... and Found, A Day Underwater and What's in the Deep? An Underwater Adventure.