Commentary: Nickelodeon's upcoming series, Avatar: Seven Havens, has me thinking about the themes of the original show.

The Last Airbender introduced this technique through ... and eventually an entirely new group of Airbenders. No moment in Legend of Korra highlights Tenzin's strength better than his battle ...

Its central character, Aang, is the last of the Airbenders after the Fire Nation wiped them out. As the Avatar, he must stop the war, kill the tyrannical Fire Lord, and set things right again.