When Clara and Zeke dig up a series of strange fossils from an unknown cat-shaped dinosaur, they expect to make a groundbreaking contribution to the science of Paleontology. Soon they find themselves in the sights of Myles Vulture, a trillionaire with unlimited resources who will stop at nothing to obtain the rare Kittysaurus fossils for his own collection.
Their only hope of success requires a trip 145 million years into the past to a lost period of history called the Zanyzoic where Clara and Zeke run the risk of getting eaten by their own discovery!