Although Aang denies to Katara that he is the Avatar, she soon learns the truth when a young firebender named Prince Zuko attacks her village, looking for the airbender. Aang must face his destiny as he fights for the tribe's safety and his life. But with the help of Katara, Sokka and his flying bison Appa, Aang escapes Zuko's clutches. Together, they journey into the war torn world to find a master to teach Aang waterbending - the first step to becoming the Avatar.