http://animationheroes.blogspot.com/ The Legend of Aang takes place in a fantasy world, home to humans, a variety of fantastic animals, and spirits. Human civilization is divided into four nations, the Water Tribe, Earth Kingdom, Air Nomads, and the Fire Nation. In every nation there are those who are called Bender (literally means "bending", but in this case is considered "Controller") who has the ability to control the natural elements according to their nations. Art control elements of this nature is a fusion style of martial arts and magic of natural elements.
In every generation, there is someone who is able to control every element, is called an Avatar, the spirit of the planet incarnate in human form. When an Avatar dies, he will be reborn in the nation that always turn alternately in accordance with the cycle of Avatars, which along with the seasons: winter for water, spring for earth, summer for fire, and autumn for air. Legend says that the Avatar must learn the art of controlling elements in accordance with the order, starting with the original elements of the Avatar nations, but sometimes this sequence can dilewat if circumstances force. Studying the control element opposite the original elements of one's nation is extremely difficult because of different martial arts styles and doctrines.
A century before the opening story of this series, Aang, a boy 12 years old wind controller from Southern Air Temple belongs to the Air Nomads, was told by the elders that he is "the Avatar". Usually, the Avatar was told his true identity as the Avatar when he moved 16 years, however, the monks fear the war is going on between the four nations is imminent and soon the Avatar would be required to maintain balance and peace of the world. This makes Aang is confused and depressed. Long story short, Aang fled from Southern Air Temple, but in the middle of the road he met with a very big storm and he and Appa (a giant flying bison hers) fell sank into the sea. But Aang immediately makes the ball around his body and Appa air so he does not get wet. The freezing air balls in the surrounding water so that Aang and Appa trapped inside the ice packs. later discovered by Katara and Sokka.