Max Taylor is the son of paleontologist Dr. Spike Taylor. After falling out of bed early one morning and witnessing a meteor fall from the sky, Max sets out with his friends Rex Owen and Zoe Drake into a forest where the meteor had crashed. They find stones with the symbols for lightning, wind, and grass on them and a card with a picture of a Triceratops on it. The Triceratops that is later named Chomp is accidentally activated when Max rubs the card on the stone. The D-Team meet their new enemies in the Alpha Gang consisting of Dr. Z, Ursula, Zander, Ed, Seth, Laura, Rod, Helga, and the Alpha Droids. The Alpha Gang plans to obtain the Dinosaur Cards that were lost when their time machine exploded and stranded them in the present. Rex activated a Carnotaurus card which was named Ace and Zoe activated a Parasaurolophus which was named Paris. The D-Team and Alpha Gang often clash for possession of dinosaurs that are activated when their cards are activated. In the finale, Seth turns on his comrades with his Black Tyrannosaurus which is ultimately defeated. Seth attempts to bring Chomp back to the past which fails and Seth is sent into the past alone. The D-Team surrender their dinosaurs to Rex's original parents, with many tears.