[Episode starts with Steranko watches from the window of Kraang invasion with Kraangdroids patrolling the streets. Steranko returns back inside. We see Zeck sitting on Steranko’s chair.]
Steranko: Have been months since aliens invasions. There must be way out of city!
Anton: Why not use one of your fancy tanks to get us out, big S?
[Steranko throws Zeck out of his chair letting out a thud and sits down.]
Steranko: How many times I must tells you! Show models only! I get them big discount!
[Zeck sees the can with rat in it. The rat runs off and Zeck is frustrated.]
Anton: I'm starving! All our food is gone, and we're down to moldy ketchup and dead cockroaches!
[Zeck takes out moldy ketchup and a dead cockroach. He smears the cockroach with ketchup and attempts to eat it, but Steranko snatches it away.]
Steranko: Secret headquarters mine. Moldy ketchup cockroaches mine!
[Steranko eats the cockroach and smirks at Zeck.]
Anton: [frustrated] Oh, snap, Steranko. That's cold-blooded! We gotta get outta this city, dog! [Shrilly] We gotta get outta this city!
[Later, Steranko and Iven head outside and watch the kraang patrol the city.]
Steranko: No way out, comrade Zeck. When henchmen try to make out of city, they all gets mutate! Ivan Steranko never turn into freak!
Anton: [scared] But how are we gonna make it past a million alien robots? My invisibility field is totally jacked! I'm jacked!
[Suddenly, a kraang probe scanner comes, but they both escape to the alley.]
Steranko: Is dangerous... But Shredder only one who can get us out of city. We make deal.
Anton: That's brilliant, baby Ivan! Brilliant! But what have we got that Shredder wants?
[He takes out a photo of Karai.]
Steranko: Right here. We find his daughter, Karai. She was mutate by same stuff that make turtle freaks. Shredder has look for her ever since.
Anton: So you're sayin' we can use her as a bargaining chip with Shredder to get out of the city?
Steranko: Da. Oroku Saki will have no choice.
[Both laughing]
[Theme song.]
[In the new hideout, Mikey, April and Splinter do chores in their temporary house.]
April: Looking good guys. Pretty soon this place will feel like a real temporary home!
Mikey: We just need a few more decorations.
[Few minutes later, Mikey set up drawings on the wall.]
Mikey: What do you think?
April: [awkwardly] Yeah, I think it looks great.
[Splinter looks down, saddened.]
Mikey:[concerned] You okay, Sensei?
Splinter: Forgive me. My thoughts are elsewhere, Michelangelo. It is very dangerous out there.
[Splinter looks at the window to see Kraang patrolling.]
Splinter: Casey and your brothers have been gone for a long time.
[April enters Donnie's new lab, which is the kitchen.]
April: How's the new lab setup?
Donnie: Ehh, kinda makeshift. I'm brewing a batch of retro-mutagen I started back at the farmhouse. Takes forever.
April: And then we can mutate my dad back? Um, hopefully for good this time?
Donnie: Well, that's the plan. And everyone else who got mutated, including Karai.
Splinter: Karai.
[Leo, Raph and Casey return from the broken lair.]
Leo: Oh, yeah!
Casey: This is amazing!
Raph: I got one word for you.
Casey: Score!
April: You did it? You managed to sneak back into the lair?
Casey: Yo, Don, check it out! Got you some sweet chemicals!
Donnie:[satisfied] Oh, wow, awesome!
Casey: And even though the Kraang were mad-dogging us the whole time, we didn't forget Mikey's big request.
[Mikey opens the box to reveal a TV set.]
Mikey: [happy] Tee-veeeee! Now we can watch Crognard again! Aw, yeah!
[Donnie sighs, slightly annoyed.]
Leo: We got you something too, Sensei.
[Leo gives Splinter his old family photo.]
Splinter: [graduates towards his son] You are a good son, Leonardo.
Mikey: [putting the TV on the table] What an awesome home we have! It's even got the new home old smelly pizzeria smell. Mmm pizza.
April: It's still a little cramped for my liking.
[Cut to Splinter. He is happy with his family back, but he's upset, because Karai can't come to their family, due to her mutation.]
Splinter:[sadly] Home for me will never be complete without my daughter.
Leo: The longer she's out there alone, the more she risks losing her humanity.
Mikey: We can help her. We just have to keep looking.
Raph: For all we know, Shredder or the Kraang have her.
Splinter: No. I saw her only a few days ago roaming the streets at night. But I was not in my right mind, I could not help her.
Donnie: I think we can find her! I've been updating all of my surveillance tech, and I'm just a few days off from finishing more retro-mutagen!
April: All right, guys let's do this!
Leo: Sorry, April, you and Casey have to stay here. Ninjas only.
April: [upset and disappointed] What? You need us!
Casey: [angry] That's not fair! I wanna trash some alien scum, too! Why you gotta pent up my rage, Leo?
[Casey folds his arms, frustrated. The scene cuts to the Shredder's lair, where Shredder speaks with Rahzar and Fishface, as Tiger Claw stands.]
Shredder:[very upset] You continue to fail me in your search to find my daughter.
Fishface: Ehh, Master Shredder, Karai is just too scaly.. I mean, stealthy. And this city is so big.
Rahzar: She's as slippery as a serpent! Um, I mean, we've looked everywhere, master!
Shredder: You will find her, or I will turn you both over to Tiger Claw. He is bored of having little sport.
[Tiger Claw smirks maliciously, seeing that he can have a little fun.]
Rahzar: Yes, master!
Fishface: Eh, no problem! Back in a bit.
[They leave as we cut back to the turtles, who search for Karai]
Leo: All right team, this is the last place Master Splinter saw Karai.
Raph: You getting any readings, Donnie?
Donnie: [puts on goggles] Picking up trace amounts of mutagenized DNA. Scanning now... That's it! Snake cell/human hybrid DNA sequencing. It's Karai!
[Mikey picks up the scales.]
Mikey: Oh, snap, check it out! Potato chips! [eats them] Mmm. Kinda stale, but not bad. Do I detect sour cream and chives?
Donnie: Actually, those are snake scales. Karai must be shedding.
[Mikey spits them out, disgusted, realizes what he was eating. His eyes turn white in disgust.]
Leo: All right, guys. We follow the DNA trail. Lead the way, Donnie.
[They head back to the van. Back with Zeck and Steranko. Ivan pulled out a snake skin.]
Steranko: Ooh, this is funky fresh. Snake skin recently shed. I am better hunter than my brother Boltak!
Anton: Stop messin' with that butt-nasty skin. What you want is right down there, son! Heh heh! She thinks she's hiding!
Steranko: Da. Now I make her go sleepy nap time. [Inhales] Steady, Steady. [Mikey appears] Turtle face?
[A ninja star stuck his gun]
Steranko: Mother Russia!
Leo: Leave Karai alone!
Anton: [upset] Aw, man, not these freaks again!
Raph: Freaks? Nice outfit. 1987 called. It wants its jumpsuit back.
Anton:[enraged] Uh-wha-wh-wh-wha?! You making fun of my suit? I will bust you in your dang head!
[He used his plasma mohawk and the turtle attacked. Steranko began to fire a big gun.]
Steranko: Finish them off! Once and for alls! Raaaahhhh! [fires his gun] Turtle pests! You are like fleas on back of powerful Russian bear!
[They dodged again from Zeck's plasma Mikey tries to comfort Karai.]
Mikey: Karai, you have to stay here. Wait for us. Understand?
[Karai nods and hides from a Kraang prode. Mikey runs off. Zeck fights Donnie and Leo.]
Donnie: Why is he making those noises?!
Leo: He's just trying to distract us!
[Raphael is facing Steranko. Mikey leaps and grabbed his gun with his chain. Leo and Donnie continue on dodging, but the Russian man uses his knuckle metals to punch him away, just as Mikey. Raphael's head is covered with a hammer sign.]
Raph :[angered] Why you...rarrrhhh!
[He charges.]
Steranko: Freaks!
[He throws a grenade and explodes. He grabbed his traq gun and aimed at Karai.]
Steranko: Ah is perfect.
[He shoots but misses when Raph punches him. Karai hisses and slithers away.]
Leo: Karai's on the move! We gotta go after her!
[They disappear. Steranko and Anton cough]
Steranko: Ivan not happy.
Anton: [angrily] We had that snake in the can, man!
Steranko: [upset] Come. The game has not end nyet.
[Cut back to Fishface and Rahzar,]
Rahzar: [Sniffing] I don't smell snake. I smell a different kind of reptile.
[Karai continued to hide as the turtles followed her.]
Raph:[Quietly] What's it look like, Donnie?
Donnie: She's moving fast. We gotta get down there.
Leo: Kraangdroids are everywhere.
Mikey: Keep it stealthy, my ninjas. Let's do this.
[They sneak past the robots and krang zombies while they search for Karai.]
Raph: Where's Mikey?
[Mikey smacks Raph, much to his chagrin.]
Mikey: I'm right here. You guys are so slow!
Donnie: She's this way! There! She's in the warehouse!
[They enter inside]
Leo: All right, guys, let's split up and find her. Karai? You here? It's us!
Raph: Karai, come out! Where are you?
Mikey: We're not gonna hurt you, Karai. We wanna help.
Leo: Karai! Come out. We'll find a safe place for her to stay.
Raph: So what are we gonna do when we find her? Invite her back to the lair for pizza?
Donnie: That's a good question. The Retro mutagen still isn't finished.
[Suddenly, he came face to face with Kraang behind him.]
Raph: Oh, great. Another kraangdroid party!
Leo: Take 'em down before they alert more!
[Karai suddenly appears and starts to use her bite and hands to attack.]
Donnie: Um, thanks?
[Karai hisses gently as Mikey appears.]
Mikey: It's okay, Karai. It's me, Mikey. Your brother.
[But the viper hissed.]
Leo: Karai, remember us! We're your friends. Remember who you are!
Donnie: She's becoming more snakelike by the hour. She doesn't understand, Leo.
Leo: She understands, Donnie. You're changing, Karai. We wanna help you.
[She hisses at him. Leo watches her in fear and confusion as music stops...silence...but then Karai talks.]
Karai: L..e..o.
[Karai shrieks and returns into human form and falls to the ground, Donnie and Mikey in the background are shocked that Karai can shape-shift into human and snake.]
Mikey:[shocked] Whoa!
Karai: Help me. Pleasssse...
Leo: Come back with us, Karai.
Karai: No. Tooo.... Danger-oussssss....
Rahzar: I told ya I smelled Turtles!
[Karai looked and Razhar and Fishface arrive on the rafters and leap down.]
Fishface: Looks like they've made our job a whole lot easier!
[Karai turns into her viper form and attacks but she gets caught by a catcher and gets electrocuted.]
Leo: Karai! No!
Fishface: Have a whiff of poison, turtle scum!
[They disappear into green smoke.]
Raph: Come on! We gotta move!
[They begin to leave at the top.]
Leo: Can't let 'em get away.
[Anton looks through his goggles and sees the mutants holding Karai captive.]
Steranko: What is goings on, Zeck?
Anton: [Laughing] Our bargaining chip is about to come right through that door.
[He activates his shoes and heads down, cheering and giggling.]
Fishface: Nice job back there, amigo. [Rahzar gives Fishface Karai] I'll take her to master Shredder.
Rahzar: [annoyed and confused] Wait, why do you get to take her to Shredder?
Fishface: [puts her in the motorcycle] Because you are too big and bony to ride this bike.
Rahzar: Watch it, sashimi lips!
[Rahzar pushes Fishface.]
Fishface: Ey! Get your claws off me!
[As Fishface and Rahzar argue, Anton sits on the motorcycle and started to steal it.]
Anton: Haha! Thanks for the ride, fellas!
[Anton rides with Karai, Rahzar and Fishface, both shocked, stunned and speechless that they were dumbfounded, Fishface drops his knife in shock. The turtles watch from the rooftop.]
Raph: Look! There she is!
Leo: [heartbroken] No! Karai.
[Both Leo and Mikey watch at Karai and have been taken away, saddened. Meanwhile, the sun's almost rising as Zeck arrives with Karai.]
Steranko:[impressed] Is nice work, comrade Zeck! You get snake girl and steal cool-looking motor scooter!
Anton:[annoyed] I barely made it, big S. The streets are full of Kraang. Let's dial up Shredder and get the heck outta dodge.
[Anton notices a spy roach while Ivan takes a phone call.]
Steranko: Hi. Is Steranko.
Anton: You got a cockroach on your dang...
Steranko: Stop it shush! Is Shredder! We has your snake daughter. Make deal. Da. At the docks. One hour! Dasvidaniya. All is accordings to plan.
[Unbeknownst to them, Donnie had put the cockroach spy on Steranko's shoulder, which led them to track them down. In the docks, we cut to the rooftop of one of the cargos. The lightning struck as the turtles arrived at the scene.]
Leo:[Softly] Donnie, you sure they're here?
Donnie: I planted a whole bunch of spy roaches on Steranko during the fight. I'm pretty sure he ate most of them, but there's still one little guy left. Yeah, yeah, they're definitely down there.
Shredder:[confronts Zeck] So the thief who stole from me desires to make a deal. Where is Karai?
[Zeck shows his pose with his fingers to the warehouse. Steranko arrives with a collar holding Karai. Shredder is utterly shocked and clenches his fist in fury at how his ten year-old partner hunted down Karai at all cost.]
Steranko: You get us out of city safe. You get girl. That is deal.
Shredder: I don't make deals.
[Rahzar comes. Zeck watches in shock as Fishface comes out from the water.]
Shredder: But perhaps this is worth the exception. Give me Karai, and you will leave this city alive.
Leo: Let her go. And I'll let all of you walk away alive!
[The turtles leap into action and start battling.]
Anton: Back off, fish-man!
[Zeck heads off to confront Fishface, with turtles trying to defeat Shredder, but he defeats them, he grabs Donnie and throws him back to his brothers, but he doesn't fall.]
Shredder: You are nothing to me!
Leo: We're just getting started.
[Donnie jumps from Leo's shell, yells furiously, smacks Shredder with his bo staff, then scene cuts to where Steranko's head was smashed against the wall by Rahzar, instead of where Donnie hits the Shredder.]
Rahzar: It's simple. Give her to me, and the pain will stop.
Steranko: Attack, vicious snake woman!
[Steranko uses Karai as a weapon at Rahzar.]
Rahzar: Coward!
[Fishface tries to kick Zeck, but he uses his dashing moves and lasers to defeat him.]
Anton: That's right, put your weight on it, homefish!
Fishface: You talk too much! And that says a lot, coming from me!
[Fishface attempts to jump to attack Zeck, but Zeck shoots Fishface to the water.]
Anton: Whoo! Sham on, uh-sham on!
[Fishface comes out and kicks Zeck to the warehouse.]
Fishface: That's better. I can finally hear myself think again.
[Fishface goes after him, back with Shredder, who defeated the turtles, and watches as Karai was tortured by Steranko.]
Shredder: Karai!
[Leo appears from the top and slices him. Both of them have a good fight, then Leo is knocked to the cargo. Shredder goes after him, but Raph knocks him. Leo sees Karai along with Rahzar and Steranko,]
Leo: Karai!
[Leo kicks Rahzar and Steranko away from her, he slices the collar and grabs her face.]
Leo: Karai, you have to go. Hurry. don't let them take you.
Karai:[Weak hiss] Co..met.. Co..met.
[She points to the city before she retreats to the water.]
Leo: Comet? What does that mean?
Shredder: No! My daughter!
Leo: [angrily] She's not your daughter!
Shredder: I raised her. Cared for her. She is mine!
[Leo throws the smoke bomb at him, leading him and his brothers to escape!]
Shredder: What?!
[Upset, Shredder comes to the captured Zeck and Steranko.]
Shredder: Someone must pay for this. Take them to Stockman's laboratory.
[Later, the turtles had retreated to the water and come back to the docks.]
Raph: What happened back there? We had her!
Donnie: It was too dangerous, Raph. We'll find her!
Leo: She gave me a clue where she is, though. She pointed east and said "comet".
[In Shredder's lair, they are about to mutate them for their actions.]
Fishface: Some excellent DNA to be spliced with, don't you agree?
Rahzar: Heh heh. I wouldn't wanna be a warthog. Hahahaha! A warthog! Hahahahahahahahahaha!
Anton: [scared] I don't wanna be a mutant. I'm too handsome! The ladies love me!
Shredder: You stole my sacred helmet. Hunted my daughter. Your fates are sealed.
Steranko: Oh, no! Shredder, how long have known each other? It is ten years!
[Shredder glares at Steranko, unconvinced. Stockfly begins to put warthog DNA into the machine.]
Shredder: Anton Zeck is first for stealing the Kuro Kabuto.
[Fishface starts to push Zeck towards the pool of mutagen. He squeals in fear.]
Anton: Can we talk about this, G?
[Fishface pushes him into mutagen. Anton Zeck mutates in agony while Steranko nervously watches with Rahzar chuckling nearby. Zeck transforms into a mutant warthog. His fur was brown with strong looking tusks and along with a tail. His hair was still intact. The machine releases him.]
Anton/Bebop: Oh, no. Look at me. I'm a dang warthog!
Shredder: And now Ivan Steranko, my "old friend." Your animal is apropos.
[Shredder again ignores Steranko and nods at Rahzar, who nods back.]
Steranko: Let us become reasonable! I am more useful to you as normal guy, not mutant! Nyet, nyet Nyeeeet!
[Steranko tries to escape. However, it was too late. Rahzar kicks Steranko into the mutagen and Steranko mutates into a rhino. His skin became gray and his horn grew right out of his nose. He had doubled in size unlike his human form. He fell to the ground while the mutated Zeck watched him.]
Steranko/Rocksteady: Oh, don't feel so well Oh, nyet. Look at me!
Anton/Bebop: They've turned us into freaks!
[They bellow in pain, confusion and anger, ending the episode.]