[s1e20] Old Friends — Instant & Top

: Consumed by the Avatar State, Aang merges with the Ocean Spirit (forming a giant water creature known as "Koizilla") to obliterate the Fire Nation fleet and end the siege. Key Highlights & Trivia

: The finale cements Zuko’s shift from a straightforward villain to a tragic antihero . After failing to capture Aang, he accepts Iroh’s wisdom that "a man needs his rest," signaling a temporary break in his relentless pursuit. Impact on the Series [S1E20] Old Friends

The episode is frequently cited as one of the best in the series, receiving perfect scores for its animation and emotional weight. It resolves the immediate threat of Admiral Zhao while establishing a higher-stakes conflict by labeling Zuko and Iroh as traitors to the Fire Nation. : Consumed by the Avatar State, Aang merges

: Admiral Zhao reaches the Spirit Oasis and kills Tui, the Moon Spirit, turning the sky blood-red and stripping all waterbenders of their powers. Impact on the Series The episode is frequently

: This episode marks the first appearance (outside of brief flashbacks) of Princess Azula, setting her up as the primary antagonist for the next season.

: Unlike many villains, Zhao is not killed by the heroes but is dragged into the Spirit World by the Ocean Spirit. It is later revealed in The Legend of Korra that he was imprisoned for eternity in the Fog of Lost Souls.