[The episode opens with Donnie, April and Casey in the party wagon, returning home from groceries. Casey is driving with April sitting beside him. Donnie is seen in the back, trying to look after the groceries, the job that he is not fond of.]
Donnie:[complaining] So why am I always stuck in the back with the groceries?
Casey: Somebody has to make sure the eggs don't break, dude.
Donnie: [angrily] We don't even buy eggs! We have chickens! I know what you're up to, Jones! You always get to drive! I wonder why.
Casey: Well, maybe because a giant turtle driving a hippie bus seems a little suspicious!
April: [sighs, annoyed] All right, guys. I'd just like to have one peaceful trip to the store where the two of you aren't at each other's throats.
[Casey and Donnie quiet down and look away from each other.]
April: Now that's better. Peace and quiet.
[While everything is quiet. Suddenly, the very same muscle car we saw earlier in the episode The Croaking, drives after them. It ran over them, causing the teens to yelp.]
Casey: [angry] A little chip 'n chase, huh?!
April: [sternly] Just pull over, Casey. Get out of the way!
Casey: [enraged] Nobody forces Casey Jones off the road!
[In order to get a payback from him, Casey rams into the car, whose driver laughs and uses maneuver to run them over, causing them to crash to the tree.]
April: Ugh... Everyone okay?
Donnie: [angrily and sarcastically] Nobody forces Casey Jones off the road, huh?
[This word causes Casey to fly into road rage and punch his fists in the wheel repeatedly in frustration.]
[theme song]
[In the house, the turtles are watching Crognard.]
Crognard: Muurg has the jewel of Koweewah!
Muurg: Heh-heh. You'll never catch me, Crognard! What's this? Aah!
[She slips around before Corgnard leaps onto him.]
Crognard: Give me back my mystic jewel! Rah!
Mikey: Dude! That centaur doesn't stand a chance against Crognard the Barbarian!
Announcer: W.H.Y.Y breaking news! A word of warning for those planning on driving tonight: Stay home! Reports are coming in of a mysterious driver running people off the road.
Raph: That qualifies as breaking news out here?
Mikey: Back in the city, every driver's a reckless driver. Bring back Crognard!
[Donnie, April and Casey are back and retell their encounter with the maniac.]
Donnie: It was him! That's the maniac who nearly trashed us!
Leo: You ran into that nut?!
Casey: More like he ran into us! Over and over. We gotta get back out there and teach that guy a lesson!
April: Casey, it's not worth it. Just be glad we're all okay.
Donnie: Yeah, we're- ugh- mostly okay I got shell-lash trying to save all the food.
Mikey: [congratulates Donnie proudly] A noble sacrifice, D!
April: Your neck okay, Donnie?
[April massages Donnie's shell, Donnie shoots an evil glare at Casey.]
Donnie:[relaxes] Ooh. Ooh, yeah, a little lower Aww, yeah, that's hittin' the spot!
[Casey grumbles in frustration and folds his arms. April enthusiastically shakes her hand and watches at the ceiling.]
[In the farmhouse, the net morning, both Donnie and Casey work.]
Casey: Hey, armpit, hand me the 1/4-inch socket.
Donnie: Sure thing, barf-a-roni!
Casey: This baby is almost ready to roll, eh, Craang-breath?
Donnie: Kraang is with a "K," not a "C. "
Casey: Says who?!
Donnie: The Kraang! That one doesn't count, come up with another C-word!
Casey: Okay. Camel-face... let's take her out for a test drive!
[Later on the road, Don, Raph and Mikey gathered with the Party wagon where Casey is in the car.]
Casey: You guys ready for Casey Jones to break some speed records?
Casey: We're ready! On my mark.
Mikey: Pffft! Go!
[Casey starts the car.]
Donnie: Amazing!
Mikey: Casey's car is light-speed, yo!
Donnie: Great time!
Raph: You two knuckleheads actually pulled it off. I'm almost impressed.
Donnie: Umm.. He's not stopping, is he?
Raph: Doesn't look that way.
[Casey is driving at fast speed.]
Casey: Don't need a stopwatch to know this baby's fast! Best way to test her out is to find that road-creep! What a drag! The minute you're actually looking for a maniac, they're nowhere to be found.
[Suddenly, the speed demon appears. Casey looked and saw a one eyed demon inside.]
Casey: Aah! He's a mutant?!
Speed Demon: You! You're that kid that tried to stop me last night!
[Casey goes after him]
Speed Demon: Speed Demon's king of the road, baby!
Casey: Oh, no!
[Casey dodged an incoming car.]
Speed Demon: You rat! I'm gonna smash you all! Every stinkin' human on this road's goin' for a wild ride! Yeah!
[Casey struggles to push the Speed Demon but he loses control and crashes. The speed demon gets away. Casey angrily slammed his fist on the wheel as the party wagon arrives.]
Raph: Casey, you okay?
Mikey:[disappointed] Dude! What happened to your sweet ride?
Donnie:[angered with Casey ditched him] You trashed it! You went after that road maniac alone, didn't you?
Casey: I thought I could take him! And besides, he's no road-maniac. He's a road-mutant!
Mikey: [shocked] Whoa! A mutant?
Donnie: You totally ditched me I could have helped!
Casey: That guy challenged me! It's the code of the road, man! Mano-a-mano!
Raph: Come on. Let's get this scrap-heap back to the house.
[Mikey notices the remains of the ooze that was left behind from The Croaking.]
Mikey: Huh? Hey, guys, check this out.
Donnie: Don't touch that! Hmm Looks like some kind of mutagenic fuel. [he scoops some in the vial] Fascinating! Must be mutagen still out there-
[Party wagon arrives as Leo and April come out from the house.]
April: Casey, are you okay?
Leo: What happened?
Donnie: Speed Demon 2, Casey Jones zip.
April: You went after that guy?
Casey: The cops can't catch him. Someone's gotta bring that mutant down!
April: And that's gotta be Casey Jones, right?
Casey: That's right, red. 'Cause I'm the only one that can.
[Both work again in the farmhouse.]
Donnie: So, you find the problem with that clutch?
Casey: I found part of the problem! [pulls out a chicken under the car] Hey, Mikey! Keep your chickens outta the barn, man! Listen, Donnie. I'm sorry I went after Speed Demon without you.
Donnie: It's fine. Me and the guys have been making our own plan to bring that freak down.
Casey: Donnie, you and I know the hot rod is the best chance we got. We need to team up on this.
Donnie: [reluctant and concerned] I don't know.
Casey: I need your sweet scientific genius, Don. [singsong.] Please?
Donnie: All right, I have an idea. A crazy, awesome idea!
[Music plays as Don and Jones work on a new vehicle: Hot Rod.]
Casey: This. Is. Amazing!
Donnie: Yeah, I know. And it's almost ready. I just have to figure out the problem with the artificial intelligence for the onboard computer system.
[One of the chickens appeared and spilled the vial and ate the mutagen, causing her brain to grow into a big size.]
Mikey: [looking for one of the chickens] Here chick chick chick Where are you, little chicky chick chick chick? Oh, snap!
[They looked over and saw the chicken.]
Casey: What?!
Donnie: Holy toledo! Oh, not again! Mikey!
Casey: [annoyed and frustrated] Oh, just what I need, another mutant!
[The chicken climbed onto the vehicle and started typing.]
Mikey: Whoa! What's she doing?!
Donnie: It's communicating with us! Those are complex equations! Maybe we don't need artificial intelligence. Maybe we just need-
Mikey: Dr. Cluckingsworth, M. D.!
Donnie: Uh, yes, maybe Dr. Cluckingsworth...
Mikey: M. D. , bro. M. D.
Donnie: Um, so, doctor? Can you interface with the hot rod's computer?
[The chicken clucks and starts typing. Later on outside, Donnie gathered everyone to the barn.]
Leo: All right, Donnie, what are we doing here?
Donnie: I give you ....The turtle racer!
Raph: So your co-pilot is a chicken?!
Casey: She's the onboard navigator!
Leo: You guys really think this car is gonna stop that maniac?
Casey: Without a doubt, Leo. With this baby, Casey Jones can't be beat!
April: Well, that's it. You're gonna end up turning into street pizza.
Mikey: Street pizza? That's like one of my top ten favorite pizzas!
Donnie: Don't worry, April, with all the Kraang technology we put into the hot rod, it's one of the safest cars on the road.
[The chicken laid a glowing egg.]
Raph: What was that?
Donnie: Oh, that's a highly volatile, radioactive mutagen egg. But don't worry. It's perfectly safe. Sorta.
[Later that night.]
Leo: All right. We got the plan down, right?
Casey: As long as you can keep up in that thing!
[The chicken clucks in alarm.]
Casey: What's wrong, doc?
[He looks and the text reads “Speed Demon Approaching.”]
Casey: Guys, look out! Here he comes!
Donnie: Roger that, Casey! And remember, stick to the plan!
[Speed Demon laughs.]
Casey: So ya wanna play chicken, eh?! Sorry, doc.
[He shifts the knob and drives off to chase after the Speed Demon, driving past the party wagon.]
Raph: He's doing it again! He's ditching us!
Donnie: Nope, this time it's all part of the plan!
[Casey drives near the speed demon.]
Speed demon: Bah! I'm gonna splatter you across the road! I'll grind ya in my grill like the bug you are!
[The muscle car crashes into the hot road and drives ahead.]
Casey: This'll slow ya down, freak!
|[He fired and caused an explosion. The Speed Demon stops and chases after Casey. Donnie comes out of the party wagon and jumps into mutant car's roof. The car drives faster and Donnie screams as he struggles to hold on as best as he can. He finally reaches the driver’s seat window, grabs the mutant by his throat and pulls the mutant off of the car. Donnie and the driver fell to the ground. The car crashes as Donnie gets up.]
Donnie: Casey... We got him!
Casey: That'll show ya not to mess with Casey Jones!
Donnie: Not so tough without your car, huh?
[Donnie is about to take out his bo staff to deal with the maniac driver, but to his shock, the mutant turns into a human!]
Man: Huh?! Where am I? What happened? What are you?!
Donnie: You're not a mutant?
[the man faints]
Donnie: Well, if he's not the mutant, that must mean the-
[Lights flashed. Donnie turned and saw that the car was alive. It roars, scaring Donnie. it grabbed Donnie and pulled him inside.]
Donnie: AAAAAHHHHH!!!
[It mutated him into a horrible thing turning him into an even frightening and crazy mutant driver.]
Speed demon Donnie: More mutant power! That's what I'm talking about! Ya like that? Yeah? Well, it's all me, baby!
Casey: Donnie?!
[Speed Demon drives past him, laughing manically. Casey was enraged that the Speed demon had Donnie.]
Casey: You stupid, ugly, pickle-headed [mumbling] if I could just start this thing up-
[The party wagon arrives]
Leo: What happened?
Casey: It's the car! The car is the mutant! It's alive somehow, and it's got Donnie!
[Right before Casey drives off, Leo stops him.]
Leo: Casey, wait! We need a plan!
Casey: I got one! Get Donnie outta that mutant monstrosity pronto!
[Casey drives off as Party wagon drives off as well as music ends.]
Casey: How far is he, doc?
[MD clucks saying that he is coming.]
Casey: Time to see what this baby can really do.
[He drives off and bumps the rear]
Speed Demon Donnie: You again?
[The demon roars and knocks Casey's hot rod. He drives after him.]
Casey: Let my friend go, freak! Or I'll take us both down!
Speed Demon Donnie: Never gonna happen, Casey Jones! Donatello belongs to Speed Demon now, baby!
[Casey knocks the demon again sending them spinning around and almost at the edge.]
Speed Demon Donnie: You know, I'm a sporting guy. So how 'bout we race for it? You win, you get your friend back. I win, I get your super hot rod and all that sa-weet technology!
Casey: Fair enough.
Speed Demon Donnie: And I get you, Casey Jones, the only driver worthy of my competition.
Casey: Well, I am super dope. It's a deal!
Speed Demon Donnie: First one to dead man's curve wins. Starting now!
[He drives off and Casey follows. Meanwhile the Wagon drives off.]
Mikey: Dudes, we need some faster wheels.
Leo: What are they doing?
Raph: Looks like a race to me.
April: Is that hideous thing Donnie?
[Casey got past as the demon tried to grab him,]
Casey: I can't pass him!
[The mouth of the hood opens up.]
Speed Demon Donnie: Ow! Speed Demon's gonna win the race, the car, and a brand-new driver! Yeah, baby!
Casey: Hang on back there, doc! [puts on his helmet] Time to win this thing!
[He flicked a few buttons and fired a firecracker, scaring MD. MD lays a mutagen egg into the ooze and Casey shifts the knob making it go fast.]
Casey: Goongalaa!
[The demon looked to see Casey catching up]
Casey: All right, doc! Time for autopilot!
[Casey gets off the seat.]
Casey: Hey, road freak! You're going down!
[He fights the Speed Demon. He grabs him and electrocutes the demon while Casey grabs onto the hot rod. He drives forward.]
Speed Demon Donnie: Where the heck did he go?!
[Casey is behind the body.]
Casey: You're going down! Suck on this, sucka!
[He throws a grenade at its face as it swipes it away. He picked Casey off and threw him away.]
Speed Demon Donnie: See ya at the finish line, Casey Jones!
Casey: I don't care about winning the race! I just want my friend back!
[He whacks the monster out of the car. The demon transforms back to normal.]
Casey: Donnie! You all right?
Donnie: I yeah, I-I think so.
Speed Demon: I'm gonna chew you up and spit you out, Jones! [roars.]
Casey: Oh, no.
Donnie: I got it this time, Casey!
[He jabs his bo at the mouth]
Donnie: Leave my friend alone!
[He falls. Just as the demon is about to run them over. The wagon knocked the speed demon out.]
Speed Demon: I'll be back!
[The speed demon explodes]
Mikey: The party wagon takes the win!
Both: Yes!
Donnie: You did good, too.
April: I'm so glad you two are okay! And I'm so glad you're actually getting along!
Casey: Thanks, red. Hey, Donnie, how awesome was me grabbing your giant head, huh? So weird!
Donnie: Yeah, or when you used the mutagen-boost! It actually worked!
Casey: Oh, that was the best! I thought you were gonna squash me on that one turn, bro!
April:[disappointed] Hmph. I thought I was glad they're getting along.
Raph: I know how you feel, April.
Both: [laughing, chattering.]
[A new bromance was born as Donnie and Casey give high five and hug each other as Raph and April watch at them dejectedly as the episode ends.]