Water. Earth. Fire. Air. In the old days, there was peace between the four nations of the world. The Avatar - the spiritual and physical manifestation of the Earth itself - kept peace between the Water Tribes, the Earth Kingdom, the Fire Nation, and the Air Nomads. Only the Avatar has the ability to manipulate all four elements, but one day, he simply disappeared. In his absence, the Fire Nation attacked and for the last hundred years has carried out an all out war on the rest of the world. Now, for the good of the world, it's up to 12-year-old Aang, the new Avatar, to return peace and balance by putting his childish ways aside and mastering the four elements. Aang must accept his destiny by stopping the Fire Nation's war and defeating the Fire Lord before his hatred destroys the world.