Avatar: The Last Airbender (season 1)

Season One (Book One: Water) of Avatar: The Last Airbender, an American animated television series produced by Nickelodeon Studios, aired 21 episodes from February 21, 2005 to December 2, 2005. The series was created by Michael Dante DiMartino and Bryan Konietzko, and starred Zach Tyler Eisen, Mae Whitman, Jack DeSena, Dante Basco, Dee Bradley Baker, Mako and Jason Isaacs as the main character voices.

The season revolves around the protagonist Aang and his friends Katara and Sokka going on a journey to the North Pole to find a Waterbending master to teach Aang and Katara. The Fire Nation is waging a seemingly endless war against the Earth Kingdom and the Water Tribes, following the long-ago disappearance of the Air Nomads. Aang, the current Avatar, must master the four elements (Air, Water, Earth, and Fire) to end the war. Along the way, Aang and his friends are chased by various pursuers: banished Fire Nation Prince Zuko, along with his Uncle former General Iroh, and Admiral Zhao of the Fire Navy.