Episode list

Aang's moment of truth arrives. Can he defeat Ozai, the Phoenix King? Will he be forced to take a human life? All the characters face their greatest challenges.

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.

The heroes work together to stop Azula's destructive plans; Zuko finds companionship in an unlikely source and learns the time has come to make an imperative choice about his future.

As the Fire Nation continues its assault on the Northern Water Tribe, Sokka, Katara and Yue set out on a search for Aang, being guided by his spirit.

As Zuko tries to make it by in exile without his uncle, he remembers how his father became Firelord and what happened to his mother.

Aang awakes on a mysterious island and confronts his past lives for advice on how to stop the Fire Lord without killing him. The rest of the group searches for Aang.

Both Aang and Zuko must learn the history of how the war began. Zuko learns a secret about his great-grandfather's past.

The invasion seems to be succeeding until Aang learns that their arrival was anticipated. Zuko confronts his father.

A series of short stories covering some of the time spent by Katara, Toph, Iroh, Sokka, Aang, Zuko and Momo as they live in Ba Sing Se.

While Katara herself becomes a great waterbending master, Commander Zhao plans a siege on the Northern Water Tribe. Meanwhile, Sokka's on a mission to stop this siege while Aang tries to buy them some time.