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Season 1 - Feb. 21, 2005
Season 2 - Mar. 17, 2006
Season 3 - Sep. 21, 2007
Avatar: The Last Airbender Season 3 Episode 13
HD
Overview:
While teaching Aang firebending, Zuko finds that he has lost all his firebending skills. Now to regain his powers, Zuko and Aang must seek the original source of firebending within the ruins of a lost civilization.