Dr. Z and his remaining minions face off against Seth’s Saurophaganax. Joining all their dinosaurs in one Fusion Attack, they narrowly emerge victorious. Undaunted, Seth unleashes the pinnacle of his artificial evolution, the Black T-Rex. When the creature begins wreaking havoc on the D-Team's hometown, they have no choice but to join forces with their archenemy, Dr. Z, and face off against Seth. It seems it will take more than strength in numbers, however, to defeat Seth's prize dinosaur. The Black T-Rex quickly corners the D-Team and all of their dinosaurs.