They try to escape but the tyrannosaurus uses a vine to flip the Mach Five. Then a brontosaurus joins in the fun. Our two heroes finally get away. The tyrannosaurus falls in a tar pit and the brontosaurus rescues him. Racer X concludes that the dinosaurs are being controlled.
Speed notices something at the base of the dinosaurs' skulls.
Spritle regrets his decision to become an astronaut as his training is more like torture. Speed is taken to Dr. Ernest Brainbiter, who is controlling the dinosaurs. Speed returns his pen. Brainbiter reveals that he had already perfected time travel and he also has a neuro-transmitter which controls the animals. He wants Speed to help him get the mineral he travelled nine million years to get, synaptum.