Zyuden Sentai Kyoryuger

Long ago, in the time of the dinosaurs, the Earth was invaded by forces from outer space. The only people capable of the stopping them was a team known as the Kyouki Ryu no Sha, the People of the Strong Dragons, or, Kyoryuger for short. Now, in the modern world, they return using the powers of the Beast Batteries to fight off this revived threat. (imdb)