Watch anime online, stream anime episodes online for free.Watch Avatar the last airbender Book 3 Fire Episode 16 English version online and free episodes. Anime Episode guide, Chapter Avatar the last airbender Book 3 Fire Episode 16 The Southern Raiders The Avatar and his friends are forced on the run again after Azula finds them in the Western Air Temple. Zuko confronts Katara about her distrust of him and tries to gain her friendship. He decides to help Katara find the Fire Nation soldier responsible for killing her mother, despite Aang’s warnings that violence is rarely the answer. Together they find the man, but Katara is unable to take revenge on him. After returning, Katara finally forgives Zuko.