Power Rangers Dino Thunder

When Dr. Anton Mercer, an evil paleontologist, unleashes his 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 Black Power Ranger, Oliver recruits three students as Rangers. But can a rebellious basketball star, a beautiful loner musician, and a laid-back champion gamer become superheroes in time to vanquish Mercer and his mutant warriors?