On the evening of their [[TheHerosBirthday 15th mutation day]], the turtles finally convince Master Splinter to let them explore the surface. Amongst the other shenanigans they get themselves into, they discover pizza and notice a man and his teenage daughter being hassled by a group of InexplicablyIdenticalIndividuals. Going against the guidelines that Splinter had laid out for them, they get involved in the skirmish and try-- and fail-- to save the two. Midway through their search for these humans, they discover that the kidnappers are connected to the ooze that mutated them in the first place.
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!! This episode provides examples of:
* AllThereInTheScript: The names of April and her dad are not said in this episode and appear only in the credits.
* ArtShift:
** Flashbacks to the origin of Master Splinter are done in a monochrome, green-tint, with 2D animation resembling a comic book panel.
** Leo's favorite show, ''Space Heroes'', is done in the style of old Creator/{{Filmation}} cartoons, particularly ''WesternAnimation/StarTrekTheAnimatedSeries''.
* ArsonMurderAndJaywalking: Splinter goes on an [[OverlyLongGag overly long]] speech to the turtles about how to handle themselves above ground. This goes from avoiding strangers (which is to say, everybody) to, eventually, warning them away from public restrooms.
* BilingualBonus: During the training sequence, Leonardo says "It's a pleasure to face you" to Raphael in Japanese (onegai shimasu). In the same scene, Splinter says "Stop" in the same language.
* BoundAndGagged: April, briefly
* BrickJoke: Leo is seen watching 'Space Heroes', where the protagonist [[GetAHoldOfYourselfMan slaps his suboordinate to calm him down]]. Later, Leo tries this on Mikey with mixed results.
* CassandraTruth: The truth about the Kraang-droids.
* CliffHanger: [[BrickJoke "Mom?"]]
* ComeWithMeIfYouWantToLive: Attempted by Donnie on April, before he gets unintentionally interrupted by Mikey and clobbered by a Kraang.
* ComicallyMissingThePoint: "And then we've got ourselves a ''van!''"
* CompanionCube: Mikey affectionately hugs the ooze canister while sighing "Mom!"
* DeclarativeFinger: Pulled off at least twice. Once while Leo's reciting a monologue from 'Space Heroes', and later while Don's pointing out that [[DeadpanSnarker "Not all of us [have brains]"]].
* TheDulcineaEffect: The Turtles are quick to try and save April... and her dad, too.
* DumbassHasAPoint: "No, Michelangelo, you are correct."
-->'''Mikey:''' I am?
-->'''Raph, Don and Leo:''' He ''is''?
* EstablishingCharacterMoment: The sparring sequence.
* {{Flashback}}: To show the viewers the origin story.
** FlashBackEffects/ ArtShift
* FunnyBackgroundEvent: Played with. While Leo's on lookout for the Kraang, the camera cuts to a shot of the others behind him where they would ''normally'' be in the background, but are now in the foreground. This affords us a good look at the shenanigans they (mainly Mike and Don) get into while waiting around.
** More traditionally, during the aforementioned scene, we get Mikey falling asleep in the foreground and Don playing jump-rope (and tripping over it) in the background.
* GaussianGirl: April's first appearance.
* GetAHoldOfYourselfMan: Leo tries to calm Mikey down this way. It doesn't work.
* GilliganCut: Leo claims that the Kraang will show up at their location at any second. Cue TimePassesMontage.
* [[TheHerosBirthday The Heroes' Mutation Day]]
* HypocriticalHumor: Raph makes fun of Leo for watching Space Heroes, while he himself is reading a comic book.
* InexplicablyIdenticalIndividuals: Invoked by the Kraang-droids, before we're shown what they are.
* LampshadeHanging: After Raph complains about the amount of time they've spent waiting for the Kraang to show up. Cue Kraang.
-->'''Raph:''' He just showed up, didn't he? I should have complained two hours ago.
* LastSecondWordSwap: The "Thumbs up our noses" comment.
* LeeroyJenkins: Surprisingly, Don takes up this role when the Kraang-droids start after Kirby and April. It seems to be an isolated incident, though.
* LockAndLoadMontage: The turtles get one before going to the surface.
* LoveAtFirstSight: Don's reaction to seeing April for the first time. Immediately lampshaded.
* ([[VisualPun Literally]]) [[OrgasmicallyDelicious Mindblowingly Delicious]]: Mikey gets into this when he gets his first taste of pizza.
* MythologyGag: The intro is clearly meant to invoke the first episode of the 2003 series, down to the music playing in the background.
** Mikey's reaction to seeing the surface for the first time might be a nod to the 2003 episode "The Lesson". He says exactly the same thing that 2k3 Leo and Don did, upon seeing a less-than-glorious alleyway.
-->'''Mikey:''' It's ''beautiful''!
* OverlyLongGag: Splinter's rules for topside activity.
* PapaWolf: Splinter demonstrates how much of one he actually is, driving his sons up the wall in the process.
* PuppyDogEyes: What eventually convinces Splinter to let the turtles go topside.
* RecurringRiff: The title theme.
* RhetoricalQuestionBlunder: Demonstrated twice in one exchange.
-->'''Don:''' Is that the next-generation Cadmium processor with quantum encryption?
-->'''Raph:''' [[SarcasmMode I don't know, Donatello,]] ''[[SarcasmMode is it]]''?
-->'''Don:''' It is!
* RoboticReveal: When Mikey discovers the true nature of the bad guys.
* ShowWithinAShow: Space Heroes.
* SickAndWrong: Mikey's reaction to seeing a damaged Kraang-droid for the first time.
-->'''Mikey:''' That is ''all kinds'' of wrong!
* SomethingThatBeginsWithBoring: While they're waiting for the Kraang to show up, Mike and Don play a (one-sided) game of "I Spy". Though there's plenty to pick from in the cityscape, it's implied that Mikey's chosen Raphael as the subject several times.
* TheStakeOut
* StealthPun: Mikey declares that he'll try the pizza when nobody else is quite willing. Well, you know what they say about Mikey: he'll eat anything.
* TemptingFate: Don points out that Snake is outnumbered, and that they have the advantage in the fight. Snake immediately pulls out his [[FamilyFriendlyFirearms Family Friendly Firearm]].
* YouDoNotWantToKnow: Concerning what the cake's frosting is made out of.
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