Arriving in a small town of Earth Kingdom that is controlled by the Fire Nation, Aang's group are arrested while helping a boy named Haru. They then incite a revolution with reminding the disgruntled Earthbenders that earth was given to them through the air ducts. After, Katara finds a Waterbending scroll that she and Aang used to teach waterbending. During a side track to the Northern Air Temple on his own, Aang is betrayed by a peasant and captured by a group of Fire Nation Yuu Yan archers, commanded by Zhao. However, a masked marauder, the "Blue Spirit" (Zuko), free Aang. Aware that Zuko is the "Blue Spirit," Zhao arranges the prince's demise. But Zuko survives the attempt on his life and, with Iroh's help, sneaks aboard Zhao's lead ship as his fleet departs for the Northern Water Tribe to execute the plan he and Ozai set up with the scrolls from the Library detailing the spirits there.