Bakugan - One day mysterious cards fall from the sky and are picked up by hundreds of kids. The kids then develop a game known as Bakugan. However, there is more to the game then they thought. The Bakugan come from another world known as Vestroia, where the evil Naga is trying to conquer the world by finding the Infinity Core. Now the kids and Bakugan must team up to stop this threat.