Synopsis

Journeying toward the North Pole, Aang and his companions arrive at a vast canyon, where two factions of refugees are embroiled in bitter dispute over the right to cross. Determined to prevent bloodshed, Aang proposes to walk across with both groups. He soon discovers that a century-long feud has poisoned their relations, each side convinced of the righteousness of their cause. But as the canyon's predators begin to emerge, Aang finds himself caught in a desperate struggle to protect both tribes