Avatar: The Last Airbender: Season 3, Episode 14

3 - 14: The Boiling Rock, Part 1

Sokka is haunted by the decisions he made during the invasion plan, and feels the need to regain his honor. With the help of Zuko, Sokka travels to the highest security prison in the Fire Nation, The Boiling Rock. Disguised as guards, they search the prison, until one of them is revealed. With time running out, Sokka needs to decide if he should cut his losses and leave, or try to finish what he started.