20 Sozin's Comet: Part 3 - Into the Inferno. Current episode: 21 Sozin's Comet: Part 4 - Avatar Aang. Avatar The Last Airbender Pendant Necklace. Free. Loading. I can't believe it's over, this story really changed my life, I can't be more happy with the end, they were all so happy and they were all heroes!. Avatar: The Last Airbender s03e21 - Sozin's Comet, Part 4: Avatar Aang Episode Script. SS is dedicated to The Simpsons and host to thousands of free TV show.