Sokka and his sister Kya - later renamed Katara, must travel the world to find masters for Aang, who is the Avatar. However, they must evade a critical foe, Prince Zuko of the Fire Nation, who wants ...

The rest of the group searches for Aang. Zuko battles his sister with Katara's help for the right to be named Fire Lord. Elsewhere, Aang meets Ozai just as the comet arrives. Aang's moment of truth ...