One day Walter Fozbek woke up to find himself in a world where everyone, Hank Aaron, his cousin Ralph, even his own mother and father was a dinosaur! Except for a few fossils housed in the city's historical museum, Walter was the only human around. Where were all the other humans? Where was Walter? And how would he get home?
With the aid of Ralph (a Stegosaur), the absent-minded Dr. Krebnickel (a Trachodon), and a cranky computer, Walter is off on quite an adventure. If he can't find his way put of this mess soon, he just might end up on permanent display in the museum of human history!