"The Firebending Masters" (Season 3, Episode 14)
* Aang is finally reunited with his firebending master, the elusive Jeong Jeong. However, Jeong Jeong is traumatized by his past and hesitant to train Aang.
* Katara and Sokka journey to the Northern Water Tribe to seek Zuko's help in rescuing their mother, Kya, from the Fire Nation.
* Zuko feels conflicted about helping them because of his past actions, but ultimately agrees, leading to a touching reconciliation with Katara.
"The Southern Raiders" (Season 3, Episode 15)
* Aang, Katara, and Sokka return to the Southern Water Tribe and learn about their mother's fate.
* They discover that their mother was captured by Azula, who was leading the Fire Nation's Southern Raiders.
* The episode reveals the devastating impact of the Fire Nation's brutal tactics and sheds light on the war's personal toll on the characters.
"The Day of Black Sun" (Season 3, Episode 16)
* The episode sees the culmination of the plan to take down Fire Lord Ozai.
* The members of the Order of the White Lotus, along with the Earth Kingdom and Water Tribes, launch a coordinated attack during the solar eclipse, when firebending is weakened.
* The battle is intense, with many losses on both sides. However, they manage to destroy the Fire Nation's fleet and severely weaken Ozai's forces.
"The Western Air Temple" (Season 3, Episode 17)
* Aang and the group are confronted by Azula, who seeks to capture Aang.
* Azula's ruthlessness and powerful firebending force Aang to use the Avatar State, leading to an epic battle.
* In a shocking turn of events, Katara uses bloodbending to temporarily defeat Azula, leaving her vulnerable.
"Sozin's Comet, Part 1: The Phoenix King" (Season 3, Episode 18)
* Sozin's Comet, a celestial event that amplifies firebending, arrives, unleashing Ozai's full power.
* Aang, still struggling to master the Avatar State, feels overwhelmed by Ozai's power.
* The episode ends with Ozai's brutal attack on the Earth Kingdom, culminating in the destruction of the Earth King's capital city.
"Sozin's Comet, Part 2: The Old Masters" (Season 3, Episode 19)
* The final battle for the fate of the world unfolds. Aang, now fully embracing the Avatar State, fights against Ozai.
* Despite his immense power, Ozai proves a difficult opponent, pushing Aang to his limits.
* In a climactic moment, Aang chooses a different path, refusing to kill Ozai and instead using energybending to strip him of his firebending power.
These episodes offer a thrilling and emotional conclusion to the Avatar storyline, showcasing the growth of the characters, the resolution of long-standing conflicts, and the power of hope and compassion in the face of overwhelming odds. The series ends with Aang restoring balance to the world, paving the way for a new era of peace and understanding.