 When Dr. Anton Mercer turns into an evil Mutant creature called Mesagog, an attack on Earth is began using three fierce machines called Dino Zords - creatures of incredible strength and intelligence - on the world, Dr. Tommy Oliver, a mild-mannered high school teacher must stop him. Reigniting his secret past, as the Green, White, Red Zeo and Red Turbo Power Rangers, Oliver recruits three students as Rangers. But can a rebellious soccer star, a beautiful loner musician and a laid-back champion video gamer become superheroes in time to vanquish Mercer and his mutant warriors and an upcoming Evil White Ranger?