10 Iconic Episodes Of Avatar: The Last Airbender
4. The Drill (Book 2: Episode 13)
After trying to reach Ba Sing Se for so long, Team Avatar finally reaches the outer wall, only to find the Fire Nation attacking it with a giant metal drill. What’s more is that their offer to help is denied by the Earth Kingdom general of the outer wall, so they must devise a plan of their own to take down the drill.
After giving it some thought, the team decided to try and enter the drill and find a way to take it down from the inside.
Once they are in, they find schematics to the drill and discover that if they cut through enough key support beams and deliver a final blow to the top of the structure, then the whole thing will come down. After fighting off Azula, Ty Lee and Mai, Team Avatar are successful and stop the drill while also plugging up the hole in the outer wall.
The episode ends with Team Avatar finally making it inside Ba Sing Se and one step closer to finding Appa and telling the Earth King about the impending Solar Eclipse.