The world is divided into four nations: the Water Tribes, the Earth Kingdom, the Air Nomads, and the Fire Nation. Each nation has its own element, and its members are known as Water, Earth, Air, or Firebenders. The Avatar is the master of all four elements, and his role is to maintain balance among the nations and preserve the world's order. However, the Fire Nation's leader, the Firebender, unleashes a war to conquer the other nations. The responsibility of saving the world falls on the shoulders of a twelve-year-old Airbender named Aang, who discovers that he is the Avatar. Aang embarks on a dangerous journey with his brave Water ...