In a nutshell, the story is about 4 countries, each with its own
element, Fire Nation, Earth Kingdom, Water Tribe and Air Nomads...
The Fire Nation is mordernising very rapidly and decide to extend
its border... Their first act of war was a genocide of the Air
nomads... and the main character is the last surviving member of
his race by escaping in an ice berg for 100 years... He is also,
"the avatar", the one with the ability to command all the elements
and suppose to be the one to bring order back to the world...
really quite an entertaining show... 
