Sixty-five million years ago, dinosaurs disappeared in a mysterious cataclysm.But today, they're back! T-Bone, Spike, Bullzeye and Stegz are prehistoric dinosaurs evolved into intelligent beings by scientist from another dimension. Now, they've been reawakened in a bizarre new world. Unfortunately, the dinosaurs aren't the only prehistoric reptiles making a comeback: the nefarious Raptors have also arrived in the modern world, and that means trouble. Now, the only ones who stop them and make the world safe for humanity are four heroic dinosaurs. And not just any dinosaurs... Extreme Dinosaurs!