History Recap / CodenameKidsNextDoorS4E4OperationPOOL

* AmbiguousFate: 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.

* 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.

** Eizzil hates Negative Numbuh 1.

* FisherKing: The negative world is under constant cloud cover for the majority of the episode. Once Negative Numbuh 4 is defeated, they finally part to reveal the sun.

[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screen_shot_2021_11_11_at_54825_pm.png]]

** Even the acronyms for the evil Kids Next Door and good Delightful Children From Down The Lane have their acronyms backward as the Destructively Nefarious Kids and the Little Traitor Dudes For Children's Defence respectively.

** The LTDFCD have "traitor" in their name, implying that they were former DNK operatives who defected. ''WesternAnimation/OperationZero'' reveals that the Delightful Children were brainwashed KND operatives.

* DisproportionateRetribution: The leader of the DNK threatens Eizzel alone with banishment to the broccoli mines, despite that Negative Numbuh 1 was just as responsible for letting the real Numbuh 1 and Lizzie escape.

** Negative Numbuh 86 is timid and backs down easily.

** The Little Traitor Dudes For Children's Defense are fighting for the freedom of children, and their father loves them dearly.

** The LTDFCD have "traitor" in their name, implying that they were former KND operatives who defected. ''WesternAnimation/OperationZero'' reveals that the Delightful Children were brainwashed KND operatives.

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

* ActuallyPrettyFunny: Negative Numbuh 86 and a few other DNK members start laughing when Positive Sector V mock Negative Numbuh Four's goatee.

* 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]].

* BrickJoke: At the beginning, Numbuh 4 complains that he'd rather go to the beach since he'd at least be able to get buried in the sand. TheStinger during the credits shows that they filled the pool with sand to cover the portal, and Numbuh 4 is happily buried up to his neck in sand.

* DirtyCoward: Negative Numbuh 1 is this, taking pleasure in bullying Numbuh 4 (someone smaller than him) with his fear of swimming up until Numbuhs 2, 3 and 5 tell him to quit it. Eizzil also has shades of this, backing down whenever someone more assertive than Negative Numbuh 1 talks back at her. Ultimately, Negative Numbuh 4 is the biggest coward of them all. He relies on bodyguards and striking fear into others in order to maintain his tyrannical rule.

* ShipTease: 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.

** In the end, Numbuh's 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!]]"

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

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

* SdrawkcabName: Eizzil.

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

* 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 [[spoiler: "Numbuh 1" smiles and reveals [[IdenticalTwinIDTag his missing tooth]].]]

* DirtyCoward: Negative Numbuh 1 is this, taking pleasure in bullying Numbuh 4 (someone smaller than him) with his fear of swimming up until Numbuhs 2, 3 and 5 tell him to quit it. Eizzil also has shades of this, backing down whenever someone more assertive than Negative Numbuh 1 talks back at her. Ultimately, [[spoiler: Negative Numbuh 4 is the biggest coward of them all. He relies on bodyguards and striking fear into others in order to maintain his tyrannical rule.]]

* EmpathicEnvironment: The negaverse is overcast and dark until [[spoiler: Negative Numbuh 4 is oust from power.]]

* HeelFaceTurn: [[spoiler: The entire DNK, barring Negative Numbuh 4.]]

* MachiavelliWasWrong: As soon as [[spoiler: Negative Numbuh 4 is exposed as a coward, his soldiers abandon him because they're tired of living in fear.]]

* SmartBall: Numbuh 4 has this moment when [[spoiler: confronting his Negative self]]:
--> "If you're [[spoiler: my opposite...[[WhamLine that makes you a COWARD]]!]]"
* StatusQuoIsGod: Played with. [[spoiler: Numbuh 4 has learned to swim by going through the portal, and Numbuh 3 even lauds him for this. However, just because he ''can'' swim doesn't mean he ''wants'' to. All the same, he prefers to transfer the swimming pool into a sandpit pool.]]

* 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.

** 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.