If you have seen Avatar: The Last Airbender, then you know you were watching arguably the best action cartoon for kids going. Where other action cartoons rely on giant robots and explosions, Avatar is more like a Jackie Chan movie with some super powers thrown in. The hero, Aang, is destined to be the the one who will unite the four powers of the world: Earth, Air, Fire and Water, oh, and save the world while doing it. Too bad the members of the Fire Nation are poised to take over the world into their iron grip. The series is full of mystical martial-arts action, crazy chase scenes and all sorts of wild acrobatic action. It was Nickelodeon's highest rated new program when it debuted and quite frankly, a win for the network.