This episode is part of the Avatar Book Two - Earth
Avatar The Last Airbender Episode Guide ~ via Wiki
The gang continues looking for Appa, so Long Feng tries to throw them off by sending Jet to make them leave the city. They meet up with Longshot and Smellerbee and realize Jet was brainwashed. Elsewhere, Zuko discovers that Aang is in the city and begins his own search for Appa.