The Firebending Masters Avatar: The Last Airbender : Season 3 Episode 13
TV-Y7-FV Nickelodeon (US) 23m int(0)
Aired: July 15th, 2008 @ 11:00 AM EST on Nickelodeon (US)
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.