Power Rangers DinoThunder plot
dr. Tommy Oliver, one of the original Power Rangers, has teamed up with an eccentric scientist to create the 'Bio Zords'. Their laboratory is attacked by the villain Mesogog, who wants to exterminate all humans and return the earth to the age of the dinosaurs. Tommy manages to escape to the small town of Reefside, where he lives a quiet life as a high school physics teacher. But when Mesogog returns and sets out to fulfill his evil plan, Tommy recruits the three college students Connor, Ethan and Kira to become the Dino Thunder Rangers and fight Mesogog and his army of mutants.