A young boy known as the Avatar must master the four elemental powers to save the world, and fight against an enemy bent on stopping him.

Set in an Asiatic, war-torn world where certain people can "bend" one of the four classical elements: water, earth, fire, or air. Aang is the "Avatar", the only one capable of bending all the elements, and is destined to bring peace to the world from the Fire Nation. With his new companions Katara and Sokka, Aang sets out to master the elements while being pursued by the exiled Fire Nation prince Zuko, who seeks to regain his honor by capturing the Avatar.