Terry is always ready for a new adventure. This time he was supposed to go 65 million years into the future in a time travel machine. Unfortunately the machine took him 65 million years into the PAST.

When he emerged from the time machine he was very confused to find dinosaurs there. He made friends with several herbaceous dinosaurs and he had to rescue one large dinosaur from a tar pit. Then a Tyrannosaurus rex attacked Terry and his vegetarian dinosaur friends.

During a fight with the tyrannosaur Terry got badly bent up. As the fight continued a tremendous meteor struck the Earth. Terry and the dinosaurs fled for their lives. Will the dinosaurs all die? Will Terry make it back to the time machine and return safely to the present time?