Explore the prehistoric world with Buddy the T. rex, Mr. and Mrs. Pteranodon, and dinos of all sizes on board a locomotive that moves across time and terrain in this animated Jim Henson series devoted to life science and natural history. Aquatic adventure is the theme of this collection, which has the Pteranodon family escorting Elmer Elasmosaurus back home, getting acquainted with friendly shark Carla Cretoxyrhina and visiting Paulie Pliosaurus.