Avatar: The Last Airbender

Avatar: The Last Airbender is an American animated series that aired on Nickelodeon from February 2005 to July 19, 2008.

The four elements: Water, Fire, Earth, and Air, lived in peace long ago, but then the Fire Nation attacked. Aang, the Airbender, fled due to a storm and was trapped in ice, only for Katara and Sokka to find him and free him.