Provider: Eastern (ET) Change
The Pteranodon family takes a riverboat trip. Buddy and Don vow to spend every minute together, but don't agree on how they should spend their time. Later, Grandpa Pteranodon tells Buddy about a legendary mosasaur that supposedly lives on the river.
For Mom's birthday, the family take her to a concert by Cory and her family of Corythosaurus, who make music with the crests on their heads; the Pteranodon family discover that their friend Tank Triceratops and his family are vegetarians.
The Conductor takes the Pteranodons on the Drill Engine Train in search of the perfect spot for a new Underground Dinosaur Train Station. Along the way, they learn about the earth's layers and fossils.
The Drill Engine Train burrows into an underground limestone cave that's home to strange creatures without eyes. Later, in the Cave of Giant Crystals, the family learns all about rocks and crystals.