Instead of Conner, Ethan, and Kira finding the Dino gems. Young versions of Barry Morningstar, Oliver Queen, and Kara Danvers find them. Tommy Oliver mentors Barry, Oliver, and Kara as Power Rangers. Then Sam Thawne joins after Tommy and the Dino Rangers fight Mesogog a villain that wants to conquer Earth so that he can bring the Earth back to the Dinosaur era.