After a lapse of 100 years, the Avatar-spiritual master of the elements-has returned. And just within the nick of your time . The Four Nations (Water, Earth, Fire, and Air) became unbalanced. the hearth Nation wants to rule the planet , and its first conquest are going to be the Northern Water Tribe. It’s up to a 12-year-old Airbender named Aang to seek out how to prevent it. Join Aang, Katara, Sokka, Momo, and Appa as they head north on the journey of a lifetime.