Avatar: The Last Airbender · Season 1, Episode 20

Avatar: The Last Airbender Season 1 Episode 20: Book One: Water - Chapter Twenty: The Siege of the North, Part 2

About Avatar: The Last Airbender: A young boy known as the Avatar must master the four elemental powers to save a world at war — and fight a ruthless enemy bent on stopping him.

More from Season 1

Other seasons