History Recap / CodenameKidsNextDoorS4E4OperationPOOL

* CreditsGag: Numbuh 4 singing his "Buried in the Sand" song after they've converted his pool into a sandpit, with the rest of Sector V eventually leaving him there by himself.

* DudeNotFunny: Numbuhs 2, 3 and 5 admonish Negative Numbuh 1 for trying to push Numbuh 4 into the pool.

* ForTheEvulz: Negative Numbuh 4's reason for torturing positive Numbuhs 1, 2, 3, 5 and Lizzie.

* EvilCounterpart: The DNK are this to the KND, and their members have opposite personalities. To contrast, the LTDFCD and "Daddy" are the {{Good Counterpart}}s to the DCFDTL and Father.
** Eizzil hates Negative Numbuh 1 (though she comes to like him after he [[TookALeveLInBadass grows a spine]]).
** Negative Numbuh 1 is very wimpy.
** Negative Numbuh 2 is actually funny.
** Negative Numbuh 3 is a cruel girl.
** Negative Numbuh 4 is smart and a MilesGloriosus.
** Negative Numbuh 5 is an uncool geek with buckteeth and glasses.
** Negative Numbuh 86 is timid and wants to act traditionally feminine.

* GoodCounterpart: The DCFDTL are represented in the negaverse by the "Little Traitor Dudes For Children's Defense" (LTDFCD), as a SurferDude themed LaResistance who live with their kind and caring (if cowardly) father in a trailer.

** After sucking punching Negative Numbuh 3, Negative Numbuh 1 weakly attempts to defend himself and his teammate, only for Numbuh 4 to grab him and deliver this:

* BaitAndSwitch: The first half ends with Numbuh 1 and Lizzie emerging from the pool and gasping for breath, making it look like everything worked out...and then "Numbuh 1" smiles and reveals [[IdenticalTwinIDTag his missing tooth]].

* CardCarryingVillain: All the counterparts, but Negative Numbuh 4 especially as [[TheNapoleon the Napoleon-like]] EvilGenius proudest of his villainy.

* CowardiceCallout: When Numbuh Negative-Four brags to Numbuh Four that he's his exact opposite by calling him stupid, he counters by saying that if what he says is true, it means that he's a coward.

* EverybodyHasStandards: The KND may not be big on being respectful, but even they [[DudeNotFunny don't see any humor]] in bullying Numbuh 4 by pushing him towards the pool.

* GoodCounterpart: The DCFDTL are represented in the negaverse by the "Little Traitor Dudes For Children's Defense" (LTDFCD), as a SurferDude themed LaResistance who live with their kind and caring (but cowardly) father in a trailer.
* GoodEyesEvilEyes: Played with; the heroes can tell friend from foe by looking in their eyes. Both Numbuh One and Four are able to immediately tell they weren't talking to their LoveInterest and reveal that, when looking into Eizzil and negative Numbuh Three's eyes, there is no kindness like in their positive counterparts. But, thanks to [[BlackBeadEyes the artwork style]] the audience themselves can't tell the difference. In the ending scene, Nigel comments to Eizzil how her eyes have now changed (since she turned good) and look much kinder.

--> '''Numbuh 4:''' Well, what are ya waiting for, princess? Let's ''dance''.

** Numbuh 4 near-instantly figures out that Negative Numbuh 3 is an imposter by [[GoodEyesEvilEyes looking at her eyes]]. Rather tellingly, this is '''exactly''' how Numbuh 1 was able to deduce that Eizzil wasn't Lizzie.
** Oh sure, he ''[[SheIsNotMyGirlfriend claims]]'' that "[[ThePowerOfFriendship It's called being a friend]]", but that doesn't explain why he failed to identify Eizzil and Negative Numbuh 1 this way right away like he did with her (and as Nigel did with Eizzil/Lizzie).
** In the end, Numbuhs Three and Four share a ShipTease moment. She says she's proud of him for learning to swim and hugs him, to which he smiles and hugs her back. They take a moment to laugh together before jumping through the portal to go back home.

-->"[[ArmorPiercingResponse Well, If you're my opposite...then]] [[WhamLine that makes you a COWARD!]]"

* EyesNeverLie: The Negative doppelgangers can be discerned from their original versions by looking into their eyes.

* WouldHitAGirl: Well, he would if they're an impostor from the DNK masquerading as his real friends. Numbuh Four punches Negative Numbuh Three right in the face with ''no'' hesitation.
* WhyDidItHaveToBeSnakes: Numbuh 4 has to deal with learning to swim in order to use the PortalPool.

* MiningForCookies: Being sent to the Broccoli Mines is considered the harshest punishment the negaverse has to offer.

* ThePowerOfFriendship: See SpotTheImpostor below.

* OneManArmy: Numbuh Four single-handedly beats the entire Negative Sector V to a pulp.

* PreAsskickingOneLiner: Eizzil delivers one before kicking Negative Numbuh 4 back into the negaverse, having come over to Numbuh 4's side in the time since he fought off the rest of Negative Sector V.

* HorribleHousing: The LTDFCD live in a tiny trailer with old food boxes littering the shelves.

* CowardiceCallout: When Numbuh Negative-Four brags to Numbuh Four that he's his exact opposite, he counters by saying that, if what he says is true, it means he's a coward.

** Negative Numbuh 4 is a JerkWithAHeartOfJerk and a coward.

* AsideComment: After Negative Numbuh 86 tearfully admits that wants to pretend to be a [[PrincessPhase pretty princess]] rather than an imposing soldier, Numbuh 2 leans over to Numbuh 3 to whisper that she's definitely Numbuh 86's opposite.

* AsideComment: After Negative Numbuh 86 tearfully admits that wants to pretend to be a [[PrincessPhase pretty princess]] rather an imposing soldier, Numbuh 2 leans over to Numbuh 3 to whisper that she's definitely Numbuh 86's opposite.

* PreAsskickingOneLiner: Eizzil delivers one before kicking Negative Numbuh 4 back into the negaverse, having come over to Numbuh 4's side in the time since she he fought off the rest of Negative Sector V.

* UncertainDoom: Numbuh 4 knocks his Negative self into the pool where he's last seen screaming as he's sucked down it. While it's implied he drowned, it's never made clear.

** Negative Numbuh 2 makes a pun about Negative Numbuh 4's cow-ardice and goat-ee that has everyone but Numbuh 2 laughing, as he doesn't get the joke.

** Negative Numbuh 2 makes a pun about Negative Numbuh 4's cow-darice and goat-ee that has everyone but Numbuh 2 laughing, as he doesn't get the joke.

** Negative Numbuh 2 makes an pun about Negative Numbuh 4's cow-darice and goat-ee that has everyone but Numbuh 2 laughing, as he doesn't get the joke.

** Negative Numbuh 86 and a few other DNK members start laughing when Positive Sector V mock Negative Numbuh Four's goatee.
** Negative Numbuh 86 and a few other DNK operatives are also visibly trying not to giggle when the KND and Lizzie are mocking Negative Numbuh 4.

* AsideComment: After Negative Numbuh 86 tearfully admits that wants to pretend to be a [[PrincessPhase pretty princess]] rather an imposing soldier, Numbuh 2 leans over to Numbuh 3 to whisper that's definitely Numbuh 86's opposite.