Sozin's Comet Part 1: The Phoenix King - Aang begins having second thoughts on what to do when he comes across the Fire Lord. The Fire Lord has special plans for his victory over the Earth Kingdom.

Sozin's Comet Part 2: The Old Masters - After their attempts to find Aang are unsuccessful, the gang seeks out Iroh to see if he can stop the Fire Lord with their help. Meanwhile, Aang consults his past lives for advice on whether he should take the Fire Lord's life.

Sozin's Comet Part 3: Into the Inferno - Aang has to get to the Fire Lord before he starts his attack on the Earth Kingdom. Katara and Zuko have to go and stop Azula from becoming the Fire Lord. Toph, Suki, and Sokka have to find the airships and stop them from leaving.

Sozin's Comet Part 4: Avatar Aang - Aang unleashes the full power of his long-dormant Avatar State to fight back against the Fire Lord, but can he end his reign of destruction without taking his life? Can Sokka, Toph, and Suki escape the fallen airships? And can Katara defeat an unstable Azula in time to save Zuko's life? The final battle ends here!