S2E6 · Book Two: Earth - Chapter Six: The Blind Bandit

Complete story — includes the ending

Aang is still searching for an earthbending teacher, but with little success. At an underground earthbending tournament, the group witnesses a fighter named The Boulder defeat most of the other fighters but then is bested by a young girl named "The Blind Bandit", whom Aang recognizes as the girl from his vision in the swamp. She uses earthbending to sense her environment, perceiving the lay of the land around her; fitting Bumi's advice that Aang's earthbending instructor should be someone who "waits and listens before striking." Aang tells two earthbending students about his vision in the swamp of a girl with a flying boar, who tell him that a flying boar is the symbol of the wealthy Beifong family. Aang, Katara, and Sokka find the girl, Toph, at her estate, but she cannot become Aang's teacher due to her overprotective parents, who only allow local earthbending teacher Master Yu to teach her moves well below her skill level. The tournament's host Xin Fu and several earthbending fighters kidnap Aang and Toph, thinking they collaborated to cheat the other fighters out of the prize money. Toph reveals her power by defeating Xin Fu's gang singlehandedly, but her parents become even more restrictive. She runs away from home and joins the group. Toph's father, believing Aang has kidnapped her, promise Xin Fu and Master Yu a chest of gold if they bring her back.