After Roku's death, the previous Avatar, the Avatar was reincarnated as an Airbender,
named Aang. Because of the threat of a war, Aang learned of his Avatar status when he was
only twelve years of age. Aang, terriefied by his new responsibilities and inexpereince was
then seperated from his mentor Gyatso. So he fled his home on his flying bison, Appa.
They were forced into an ocean by a storm, and with Aang entering the Avatar State he
accidently enclosing them both in an iceberg, for one hundred years. The leader of
the fire nation knowing the nature of the Avatar's reincarnation cycle, carried out genocide
of the Air Nomads during the passing of a comet.
Aang can bend all four elements, fire, air, water, and earth.
This makes him the most powerful bender of his time.
Katara is Aang's best freind while also being his Waterbending master.
She is the last Waterbender of the Southern Water Tribe and is one of the only two surviving
waterbenders of her tribe. She is also one of the only two Waterbenders able to manipulate and control
human bodies by bending the water and liquids therein, known as bloodbending.
Sooka is a fifteen years of age and is a non-bender warrior of the Southern Water Tribe.
With his Katara they accompany Aang on his journey to beat the Fire Lord.