Avatar: The Last Airbender (Avatar: Son Havabükücü) 2. Sezon 9. Bölüm (Bitter Work)

Toph's instructing abilities come into question when Aang cannot seem to overcome a block that keeps him from earthbending. Sokka gets himself in a jam, while befriending what was, moments before, his next meal, and Iroh and Zuko begin training utilizing new philosophies and methods that originate from the other elements.