Aang's eyes and tattoos glow when he is in Avatar mode in the movie The Last Airbender
based on the Nickelodeon cartoon Avatar: The Last Airbender
. Aang is the last Airbender. He has already mastered bending the air to his will, but because he is the Avatar, he must also master earth, water and fire. He is the only hope for a war-torn world where the Fire Nation is fighting for total domination.