After one hundred years of suspended animation in an iceberg, twelve-year-old Aang was freed when found by and Sokka, yet unaware of the events that occurred during his rest. His reawakening catches the attention of Zuko, the banished prince of the Fire Nation, and Aang is forced to leave, with Katara and Sokka accompanying him after they learn that he is the Avatar. Aang and his new friends visit the Southern Air Temple, where they meet a winged lemur whom Aang later names Momo. It is there that Aang learns that the Fire Nation wiped out his people, including Gyatso which causes Aang to summon his avatar spirit and the other 3 nations find out the avatar is back. After a series of misadventures, Aang meets his previous incarnation, Roku, who informs him that he must master all four bending arts and end the war before the coming of Sozin's Comet at the end of summer. Upon arriving to the Northern Water Tribe, after a few conflicts, Aang became an apprentice of Waterbending Master Pakku alongside Katara. After helping the Water Tribe drive off a Fire Nation invasion headed by Admiral Zhao, with Katara as his teacher, Aang and his group journey to the Earth Kingdom to find an Earthbending teacher. Meanwhile, Fire Lord , angered that Iroh betrayed the Fire Nation, sends his daughter, Princess Azula, to hunt down Zuko and Iroh.