The Dinosaurs and the Raptors are evolved and made intelligent by Argor Zardok, an evil scientist from the extra dimensional world of Quadrania. After Bad Rap sets off the Ice Age, the Dinoraus and Quadranian Police Captain Chedra Bodzak - and the Raptors - spend 65 million years in Chedra's Quadranian freeze chambers. They're revived in the present by unscrupulous scientist Peter Benning, and the captured by Dr. Becky Scarwell and her top secret government task force. The Dinosaurs must escape from Scarwell's Roswell installation in time to do battle with the Raptors...

Now that they know they're the world's last surviving dinosaurs, the Extreme Dinosaurs get acquainted with everything the 20th century has to offer: the Home Shopping channel, and spicy Mexican food! Meanwhile the Raptors discover oil, and realize they can burn it to heat things up all over the globe - leading to a climactic battle with the Extreme Ones, where the Dinosaurs must stop the Raptors from igniting the oil deposits beneath Los Angeles' La Brea Tar Pits.

The Dinosaurs win a TV contest and travel to Mexico to collect their prize: a vacation in a tropical paradise. Unfortunately, they're in for a rude surprise when they discover the contest is a trap staged by the Raptors! The Raptors turn T-Bone, Stegz and Spike over to Dr. Becky Scarwell, and it's up to Bullzeye to rescue his friends from Roswell before they become guinea pigs in Scarwell's experiments.

Bad Rap has found a whole cache of raptor eggs, and before long, he'll have an entire army of nasty, rotten Velociraptors! Now, he's especially determined to warm up the Earth to make it home for his vicious "children". But when the Dinosaurs capture one of the eggs, they discover that it's not quite what it seems.

When top scientist Carl Wiseman announces that a gigantic asteroid hurtling towards Earth will miss completely, Stegz is suspicious - his calculations say it's going to sideswipe the Earth, causing terrible damage! The Dinosaurs are right to be suspicious: the Raptors forced Wiseman to lie and then kidnapped him to keep him from warning everyone. They think the asteroid impact will push Earth closer to the sun, making it a lot warmer .... too warm for humans, but just right for Raptors! The Extreme Ones must rescue Wiseman from the Raptors, and find a way to stop the asteroid before it's too late.