: Aang must retrieve a key from a waterfall while being bombarded with rocks.
: After the trio is arrested for "vandalizing" the delivery system while using it as a slide, the King of Omashu puts Aang through three trials to save Sokka and Katara from being encased in "creeping crystal". [S1E5] The King of Omashu
: After revealing his identity, Bumi tells Aang he must master all four elements to defeat Fire Lord Ozai, but also warns him to find a teacher who "waits and listens before striking". : Aang must retrieve a key from a
To prove his identity as the Avatar and save his friends, Aang must complete three specific challenges: To prove his identity as the Avatar and
: This episode marks the first appearance of this recurring character, whose cart is destroyed during Aang's mail chute ride.