The Siege of the North (2) Avatar: The Last Airbender : Season 1 Episode 20

Aang returns from the spirit world to a big surprise. Meanwhile, Zhao and his forces continue to press deeper into the Northern Water Tribe. What could possibly stop the fire nation from destroying this tranquil region? If Zhao has his way, nothing. Also, Iroh makes a powerful stand and Zuko struggles to keep his plan intact.