In a lost age, the world is divided into four nations: the Water Tribes, the Earth Kingdom, the Fire Nation, and the Air Nomads. Within each nation, there is a remarkable order of men and women called the "benders" who can learn to harness their inborn talent and manipulate their native element. Bending is a powerful form combining martial art and elemental magic. In each generation, only one bender is solely capable of controlling all four elements. That bender is the Avatar. The Avatar is the spirit of the world manifested in human form. When the Avatar dies, it reincarnates into the next nation in the cycle. Starting with the mastery of his or her native element, the Avatar learns to bend all four elements. Throughout the ages, the countless incarnations of the Avatar have served to keep the four nations in harmony. Then, the Fire Nation launched a war against the other three nations. Just as the world needed the Avatar the most, he mysteriously vanished. A hundred years later, the Fire Nation is near final victory in its ruthless war of world domination. The Air Nomads were destroyed, the Air Temples ravished, and all airbender monks eradicated. The Water Tribes were raided and driven to the brink of extinction. The Earth Kingdom remains and fights a hopeless war against the Fire Nation. Many believe the Avatar was never reborn into the Air Nomads and the cycle is broken. In the desolated South Pole, a lone Water tribe struggles to survive. It is here that the village's last remaining waterbender Katara and her warrior brother Sokka rescue a strange 12-year-old boy named Aang who has been suspended in hibernation in an iceberg. The Water tribe soon discovers that Aang is not only an Airbender--the extinct race no one has seen in a century--but also the long lost Avatar. Now Katara and Sokka must safeguard the child Avatar in his journey to master all four elements and save the world from the Fire Nation.

Season 1 is titled "Book One: Water", and Season 2 is titled "Book Two: Earth." Each of these seasons contains twenty "chapters." Season 3 is titled "Book Three: Fire", and contains 21 "chapters."

Also Known As...:

UK: Avatar: The Legend of Aang
Latin America: Avatar: La Leyenda de Aang (The Legend of Aang)
Brazil: Avatar: A Lenda de Aang (The Legend of Aang)
Italy: Avatar: La Leggenda di Aang (The Legend of Aang)
Germany: Avatar: Der Herr Der Elemente (The Master of the Elements)
Spain:Avatar: La leyenda de Aang (The Legend of Aang)
Holland: Avatar: De legende van Aang (The Legend of Aang)

Opening Themes:

The Pilot:

Water.
Earth.
Fire.
Air.

My grandmother used to tell me stories about the old days.
The time of peace.
When the Avatar kept balance between
Water Tribes, Earth Kingdom, Fire Nation, and Air Nomads.
But that all changed when the Fire Nation attacked.

Only the Avatar masters all four elements.
Only he can stop the ruthless firebenders.
But when the world needed him most,
He vanished.

One hundred years have passed,
and Fire Nation is nearing victory in the war.
Two years ago, my father and the men of my tribe journeyed to the Earth Kingdom to help fight against the Fire Nation, leaving me and my brother to look after our tribe.

Some people believe that
the Avatar was never reborn into Air Nomads,
and that the circle is broken.

But I haven't lost hope.
I still believe that, somehow,
The Avatar will return to save the world.

Chapters 3+

Water.
Earth.
Fire.
Air.

Long ago, the four nations lived together in harmony,
But everything changed when the fire nation attacked.

Only the Avatar, the master of all four elements, could stop them.
But when the world needed him most, he vanished.

One hundred years passed and my brother and I discovered the new Avatar, an airbender named Aang.

Although his airbending skills are great,
He has a lot to learn before he's ready to save anyone.
But I believe, Aang can save the world.

The show retains the same opening theme through the second and third season. All three opening themes are voiced by Mae Whitman as Katara.