It was written by the creators alongside Aaron Ehasz, and directed by Ethan Spaulding, Giancarlo Volpe, and Joaquim Dos Santos.

The Saturday airing of "Sozin's Comet" acted as a climax to a week of ten new episodes that concluded Avatar's third season.

[3] The finale also follows the exploits of many of Aang's friends and allies, including Sokka, Toph and Suki's struggle to destroy a Fire Nation airship armada, Zuko and Katara's battle against Azula, and Iroh and the Order of the White Lotus' attempt to liberate the city of Ba Sing Se from Ozai's grasp.

The initial showing averaged 5.6 million viewers, a 195% increase compared to the previous year in its time period.

Alarmed, the group begins last-minute training; however, Aang can't bring himself to kill Ozai, as it goes against the culture that he is the last remnant of.

After failing to recover Aang, his friends seek Iroh, finding him in a secret society alongside their past mentors.

Sokka, Suki, and Toph sabotage the genocide fleet, the secret society liberates Ba Sing Se, and Zuko and Katara confront Azula.

On the island, Aang confers with past lives on how to defeat Ozai without violating his pacifistic values, but their input dissatisfies him.

When Ozai accidentally unlocks Aang's blocked chakras by striking his back scar,[e] the latter enters the Avatar State[f] and prepares a death blow, only to stop himself.

[7] Although "Sozin's Comet" was originally written as a three-part story, the creators noticed that the length had grown beyond what they had predicted from the initial script.

Protagonists Aang, Katara, Sokka, and Toph are voiced by Zach Tyler Eisen (in his final role before his retirement), Mae Whitman, Jack DeSena, and Jessie Flower respectively.

[12] Additionally, the finale featured a significant amount of fire compared to previous episodes, and were all hand-drawn by Yoo's team.

"[13] An IGN reviewer commented that "Sozin's Comet" "had that classic anime-look that I've always loved to see when watching old anime movies.

[1] "Sozin's Comet" received critical acclaim; Ed Liu of Toon Zone stated that it made Avatar "one of the finest animated television series ever made",[18] Andrew Whalen of Newsweek called it a "rare accomplishment",[12] Ed Liu of Toon Zone praised the skill of the animation directors in designing the sweeping movements of the battle sequences, as well as the slower scenes, "including one moving reconciliation and the quiet coda that ties off many of the remaining loose ends of the series".

[3] Susan Stewart, reviewing for The New York Times, praised the show's effort at philosophizing, noting that "this is complicated stuff, the reconciliation of religion and violence, and it's beautifully rendered: simple enough for Nickelodeon fans and subtle enough for their parents, with humor to puncture the pomposity inherent in the heroic genre.

Konietzko disliked how the Lion Turtle turned out; he felt that the art was not up to standards of the original design he had received.