Amateur paleontologist Mr. Smith unravels a million years old egg without noticing. He goes to sleep thinking his cat is next to him, only to wake up next to a dinosaur the following day.

Mr. Smith follows the weird creature up the mountain, where he has to fight for his life. Flown by twin dinosaurs, and almost killed by a poisonous one, Mr. Smith manages to escape with the help of his two new dino friends - Timo and Tara.