The family surprises Mom for her birthday with a trip to a concert given by Cory and her family of Corythosaurus, who play music through the crests on their heads.
Buddy travels to Rexville on the Dinosaur Train and meets Delores Tyrannosaurus and her daughter Annie. When he sees that he shares all the same features, Buddy learns that he is a Tyrannosaurus rex!
Buddy and Tiny tour the Dinosaur Train and earn their Junior Conductor hats while their friend Ned, a four legged, long necked Brachiosaurus and regular Train rider, tags along.
Buddy spends time with Laura Giganotosaurus, a large dinosaur who always rides the Dinosaur Train and, like Buddy, is a three-toed theropod! Buddy also discovers that Laura is an avid bird-watcher.
When Buddy loses a tooth, Mom takes him to Rexville to ask his Tyrannosaurus friends all about T. rex teeth. They explain that he'll grow new teeth to replace the old ones.
Buddy is excited that his friend Annie Tyrannosaurus is coming to the Pteranodon nest to visit and play with them. After Tiny feels left out, Buddy and Annie show her that they can all be friends!
Sean Thomas
Buddy
Claire Margaret Corlett
Tiny
Ian James Corlett
Mr. Conductor
Erika-Shaye Gair
Shiny
Laura Marr
Don