After Team Avatar heard about Zuko's withdrawing of support for the Harmony Restoration Movement, they traveled to Yu Dao, where Zuko was staying. Aang and Katara flew over the city's walls to meet the Fire Lord; however, some Fire Nation guards informed them that people were only allowed to enter with the Fire Lord's permission, to which Aang claimed that he just wanted to talk to him, but the guards attacked. After the pair defeated all the guards, Katara was grabbed by Zuko, who admonished her for attacking his people. Aang, angry at Zuko's action, warned him to let her go, but he insisted that she first had to agree to stop attacking; Aang separated Zuko and Katara with airbending, prompting Zuko to retaliate, and Aang to enter the Avatar State. Katara, telling him that he would not be able to control himself in an altered emotional state, managed to calm him down. The Fire Lord agreed to talk and gave the couple a tour of Yu Dao, pointing out how heavily integrated the lives of the citizens were in the colony. At this, Katara proposed a conversation with Kuei concerning the matter, to which the Avatar and Fire Lord both agreed.