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RELATED: Avatar: Will The Last Airbender Season 4 Ever Happen? Packaging the four individual episodes as one proved to be the right move for the series, with Avatar's finale having a truly cinematic scope and feel (which is certainly far more than can be said for the show's 2010 big-screen adaptation The Last Airbender.) Avatar ran for three seasons and concluded on Jwith the four-part episode "Sozin's Comet." All four episodes aired one after another that same evening and concluded the show with Aang and his friend's final battle against the invasion of Fire Lord Ozai.
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