The sequel series, The Legend of Korra, is also on Netflix now. To this day, it’s still considered a masterclass in storytelling, and considering Netflix is currently working on a live-action adaptation, there’s no better time to watch than now. The main story follows Aang and his companions in their effort to quell unrest and an ongoing feud with the Fire Nation, but the show’s detailed world-building and character development extend well beyond the scope of any one individual.

The show is centered on the titular Aang, a master of the elements, and four nations, each of which is named after a different element (Earth, Air, Fire, and Water). The beloved series continues to garner a following more than 15 years after its initial release, likely due to the way it deftly balances child-friendly themes with more sophisticated narratives, ones that revolve around war and the oft-ambiguous line between good and evil. When it comes to animated series, few rival Nickelodeon’s Avatar: The Last Airbender.

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