Imprisoned

When the group arrives at a small Earth Kingdom mining town, they see an earthbender named Haru who is practicing his ability, but he runs away when Katara tries to confront him about it. They soon learn that the Fire Nation has taken over the town and that earthbending is forbidden and all earthbenders are taken away to an offshore prison. However, when an elderly man is trapped when the mine collapses, Katara urges Haru to use his powers to save the man's life, but when the old man reports Haru to the authorities, Katara blames herself for his predicament and she vows to rescue him; but will she succeed?

Aang, Katara, Sokka, Appa, Momo, Warden, Haru, Tyro, Haru's Mom

Water. Earth. Fire. Air. Only the Avatar was the master of all four elements. Only he could stop the ruthless Fire Nation from conquering the world. But when the world needed him most, he disappeared. Until now... On the South Pole, a lone Water Tribe village struggles to survive. It's here that a young Waterbender named Katara and her warrior brother Sokka rescue a strange boy named Aang from a cavernous iceberg. Not only is Aang an Airbender- a race of people no one has seen in a century- but they soon discover that Aang is also the long-lost Avatar. Now it's up to Katara and Sokka to make sure Aang faces his destiny to save the tribe- and himself. Did we mention he's only 12?