->''"Who are ''you'' and what do ''you'' want?"''
The Gaang continues their search for Appa in Ba Sing Se. While setting up posters, Katara comes across an old friend: Jet. Jet claims to have seen Appa and the Gaang begrudgingly accepts his help. Unfortunately, Jet has been brainwashed by Dai Li agents and is leading the Gaang on a false trail.
Meanwhile, Iroh's tea-making finally pays off, as he is given his own tea shop in the Upper Ring. Zuko continues his search for Aang upon realizing that he is in the city looking for Appa. Iroh confronts Zuko and tries to help him understand that he decides his own destiny and not the people around him.
* AllYourPowersCombined: The entire group with its various powers fight against the Dai Li force.
* AndThenWhat: Uncle Iroh asks Zuko this regarding his plan to steal Appa.
* ArmorPiercingQuestion: During this exchange:
-->'''Iroh''': What do you plan to do now that you have found the Avatar's bison? [[BatmanInMyBasement Keep it locked in our new apartment]? [[SarcasmMode Should I go put on a pot of tea for him?]]\\
'''Zuko''': First I have to get it out of here.\\
'''Iroh''': [[OutOfCharacterIsSeriousBusiness And then what?!]] You never [[DidntThinkThisThrough think these things through]]! This is exactly what happened when you captured the Avatar at the north pole! You had him, and then you had nowhere to go!
* BigDamnHeroes: Appa swooping in to save the gang from the Dai Li.
* BittersweetEnding: The Gaang escapes the Dai Li and finds Appa, but it looks like Jet is dying from his injuries conceived in his fight with Long Feng.
* BrainwashedAndCrazy: Jet.
* ContinuityNod: Iroh brings up how Zuko captured Aang at the North Pole without any idea what to do next, so he ended up just holing up in a cave and was actually lucky the rest of the Gaang found him before he froze to death.
* CrossPoppingVeins: Aang gets them when Joo Dee tells him that he can't put up posters without permission.
** The Gaang vs. the Dai Li. Toph alone takes down over half of them.
** Long Feng claims he can handle Appa by himself. Appa grabs his foot and tosses him in the lake.
* CutApart: Team Avatar opens the door to where they think Appa is, and Appa looks up at the opening door to see... Zuko. A mild lampshading follows as Zuko snarks, "Expecting someone else?"
* DumbassHasAPoint: Rather, Brainwashed Agent Has A Point. Joo Dee tells Long Feng that the Gaang has no reason to trust her, and thus she can't do the job she was assigned, before he triggers her brainwashing.
* ElaborateUndergroundBase: The base the Dai Li have beneath Lake Laogai.
* ForgottenPhlebotinum: The DVD Commentary confesses that, yes, the writers just forgot about Katara's water from the North Pole Spirit Oasis (but it couldn't have saved Jet anyway, [[AuthorsSavingThrow they say]]).
* GroupHug: Team Avatar group hugs at the end on Appa's back.
* IKnowYoureInThereSomewhereFight: Aang to Jet, after Long Feng activates the brainwashing.
* LivingLieDetector: Toph can tell when someone is lying by sensing their breath and heart beat. This helped the Gaang find out that Jet's been brainwashed.
* ManchurianAgent: Jet.
* MauveShirt: The original Joo Dee is "sent on a vacation to Lake Laogai".
* MemoryGambit: Long Feng'S plan to use Jet and this trope against Team Avatar fails. When Smellerbee reveals that Jet had been captured by the Dai Li a couple weeks ago, Jet denies it, claiming he's been living peacefully in the city. Toph can't tell who is right because they both think they're telling the truth, leading the Gaang to realize Jet's been brainwashed.
* MindControlEyes[=/=]OpenTheIris: When the Dai Li activate the brainwashing, this happens.
* NinjaLog: Zuko pulls this as part of his plan to get into the Dai Li's underground base.
** Joo Dee is crying while telling Long Feng that the kids no longer trust her.
** Longshot [[SuddenlyVoiced speaks for the first time]], highlighting the severity of Jet's wounds.
** The normally patient, collected Iroh ''loses his shit'' and yells at Zuko for his lack of forethought.
* PetTheDog: Zuko lets Appa go.
* RedemptionEqualsDeath: Jet.
* RedShirt: Dozens of women are brainwashed into acting as Joo Dee and agents of the Dai Li. Team Avatar has no time to help them while searching for Appa.
* ReformedButRejected: PlayedWith Jet, who has reformed but while encountering Team Avatar is brainwashed into helping the Dai Li.
* SheIsNotMyGirlfriend: Toph asks if Jet was Katara's boyfriend which she vehemently denies.
* ShootHimHeHasAWallet: Jet bumps into Katara, who is not happy [[WomanScorned to see him]] given that he used her and Aang to destroy a village, and reaches for something in his pocket; Katara [[PinnedToTheWall pins Jet to a wall with ice daggers]], but it turns out that Jet was reaching for one of Aang's fliers about Appa.
* ShoutOut: Iroh tells Zuko he needs to ask himself the "big questions": [[Series/BabylonFive "Who are you?" and "What do you want?"]]
* StepfordSmiler: Joo Dee when appearing on the gang's doorstep to tell them to stop putting up fliers.
* SuddenlyVoiced: Longshot.
* TerribleArtist: Sokka's attempt to make the lost offer poster for Appa is rather... bad, to say the least. It's made even better by this exchange:
-->'''Toph:''' [[BlatantLies It looks just like him to me!]]
-->'''Sokka:''' Thank you, I worked really- ''*beat*'' Why do you feel the need to do that?
* TriggerPhrase: The brainwashing done by the Dai Li is activated by saying "(name), the Earth King has invited you to Lake Laogai," to which they respond by gaining MindControlEyes and saying "I am honored to accept his invitation."
* TriggerPhrase: The sentence "The Earth King has invited you to Lake Laogai" activates the brainwashing.
* TwoLinesNoWaiting: The Gaang and Zuko's search for Appa parallel each other and intersect at the end without meeting each other.
* VillainBall: Long Feng sending the original Joo Dee to tell the Gaang to stop putting up posters, and then sending the Gaang on a WildGooseChase to find Appa. Joo Dee while crying tells Long Feng that [[DumbassHasAPoint the kids have no reason to trust her]], and thus she can't do her job.
* WhamLine: "...He's lying." [[spoiler:Toph says this after Jet tells the Gaang that he'd be fine, after Long Feng badly wounded him with Earthbending]].
* WhatHappenedToTheMouse: We don't see what happens to Jet and his companions.
* WorstWhateverEver: Toph calls Ba Sing Se the "worst city ever" when the Gaang leaves.