Feeling as though he isn't contributing enough to the group, Sokka seeks out an elusive swords master from whom he can learn the ways of the blade. But, Sokka soon has doubts whether or not he is worthy. Can Sokka pull himself together or will the gang lose an important team member and friend?

The tale of Avatar Roku and Fire Lord Sozin is revealed to Aang and Zuko by different sources. Both learn about themselves and are shown the origins of the war. But will Zuko and Aang learn anything from this?