While teaching Aang firebending, Zuko finds that he has lost all his firebending skills. Now to regain his powers, Zuko and Aang must seek the original source of firebending within…

Having made it to the outer wall of Ba Sing Se, the kids confront a Fire Nation army that is driving a massive Fire Nation drill, which poses an imminent…

While Aang, Katara and Sokka are traveling, Sokka gets a fever. Katara and Aang try to help Sokka, when only Katara catches the fever. It’s up to Aang to go…