Watch anime online, stream anime episodes online for free.Watch Avatar the last airbender Book 3 Fire Episode 12 English version online and free episodes. Anime Episode guide, Chapter Avatar the last airbender Book 3 Fire Episode 12 The Western Air Temple Zuko follows Aang and his friends to the Western Air Temple, seeking to join their group. There, Zuko desperately tries to prove to them that he has changed for the better. It is only after Zuko helps save them from Combustion Man that he receives their acceptance as Aang’s Firebending teacher. However, Katara refuses to trust Zuko and warns him of the consequences of any treachery.