Our story begins with Cherry getting ready to go with some others to out of town to meet someone.
"Hey, buddy, whatcha doing?" Cathleen asked as she came by.
"Hey, Cath, I'm going out." Cherry told her good friend.
"Another adventure?" Cath replied. "Hey, can I go with you guys this time? I wanna be famous like you."
"Famous? Hardly..." Cherry rolled her eyes.
"At best, we're just very well-known!" Lionel replied, poofing downstairs with a suitcase.
"Yeah, we're gonna go see the Powerpuff Girls with Mo's brother Timber Spruce who wants us to meet a certain someone." Cherry said.
"Well, you know me with the good old Cartoon Network before it turned to crap." Cath nudged Cherry about coming along for the ride.
"I dunno... Are you gonna behave yourself this time?" Atticus asked.
"Yeah!" added Lionel. "We don't need a repeat of the Toy Story incident."
"Would I do that?" Cath shrugged.
The others, minus Cherry, then gave her a look.
"Okay, okay, fine," Cath replied. "Plus there'll be some OCs."
"Uh... No..." Cherry said.
"What?" Cath asked.
"Since this isn't a collab story written with YOU, YOUR OCs won't appear like that time we met Rocky and Bullwinkle," Cherry told him. "And that goes the same for me."
"We better hurry, or else we'll miss our bus!" Lionel replied. "We can continue this discussion then!"
Cath looked over to the fourth wall and soon went to join the others.
"Thanks for letting us come, Timber," Mo smiled. "I don't know who's more excited, you or the Professor."
"I think he might be just a little bit ahead of me." Timber chuckled to his younger sister.
"Well, we'll see when we get there." replied Patch.
Once everyone was on, the bus doors soon closed, and they left home to start a brand new adventure.
"So, any interesting adventures lately?" Cath asked.
"Well, this one time in Equestria-" Cherry said.
"Bored." Cath mumbled.
Cherry glanced to her, then stopped talking with a sigh.
"Sorry... It's just I'm not interested in Equestria." Cath said.
"Yeah, but you could at least hear something about it... But never mind..." Cherry then said, turning away from her.
Lionel sighed. "Some people just can't be helped," he told Cherry. "Don't let it get to ya."
"...Yeah..." Cherry nodded. "I won't say anything about it then."
Cath soon looked over, eventually feeling bad that she shot Cherry down like that since she didn't like Equestria.
They soon left home and came in the middle of a traffic jam.
"This might take a while." Timber frowned.
Lionel snapped his fingers, parting the traffic jam and allowing them to cross through. "You're welcome." he said.
"Well, sheeeeooooot!" A country voice cried before they all looked to see that it was Fuzzy Lumpkins. "I still wants a wifey t'share muh life with! Why's you city folk suh uptight?"
"It's nice day, Fuzzy, so I'll give you until the count of 20 to put me down!" Ms. Bellum complained.
"It's Fuzzy Lumpkins!" Cath called out before standing up. "I'll go stop him!"
But Lionel quickly put up a fence in front. "Not so fast!" he stated. "If we're gonna beat the bad guys, then we either do it as a TEAM, or don't do it at ALL!"
"Alright, alright..." Cath rolled her eyes a bit. "You don't have to bite my head off."
"That friend of yours, Cher." Atticus remarked.
"Yeah, I know..." Cherry sighed.
"Now we're gonna kick his butt together!" Lionel replied, changing into his Bat-Mite outfit.
Mo soon changed into Nature Girl, Cherry became Lady Gothika, and Atticus turned into Saiyaman. Cath soon looked around and she donned her own superhero outfit which she called Midnight Moon.
"It's butt-kicking time!" Bat-Mite exclaimed as the team sprung into action.
"Teamo Suprem-" Lady Gothika proclaimed before stopping herself. "Oh, wait. Wrong series."
"Focus on the task, and not your nostalgia." Midnight Moon sneered, almost with her inner wolf.
Three colored streaks were shown to be flying in the sky which only meant one thing.
"Eek! It's the Powerpuff Girls!" Midnight Moon beamed.
Bat-Mite blinked. "Cool...now let's just kick this hectic hilbilly's butt already!" he replied.
"You heard Ms. Bellum!" Blossom glared.
"Yeah, drop her, this is your last chance!" Buttercup growled.
"You're being a jerk!" Bubbles added.
"I alweez wann'ed tuh git married somewhere ruhmantic!" Fuzzy laughed as he escaped with Ms. Bellum.
"He's headed for the zoo!" Saiyaman told the others.
"Then let's head him off!" replied Nature Girl.
"Oh, no! All those animals!" Bubbles cried out.
"Don't worry, Bubbles, we'll help them." Nature Girl soothed.
"This oughta slow down them Powerpuff Girls and their new friends." Fuzzy smirked as he used a flamethrower, burning down the animal cages to free the wild animals to terrorize the citizens while carrying Ms. Bellum as she counted down from 20.
"Wait...why is she counting down?" asked Bat-Mite.
"She's giving Fuzzy until she gets to one to put her down." Midnight Moon reminded.
"Ah..." Bat-Mite replied.
The talking dog was shown to be surrounded by lions with a little boy who had adopted him until the Powerpuff Girls flew in to save them.
"We need to get these animals back in their cages!" Blossom glared.
"Without hurting them!" Bubbles added with a pout.
"Or letting them hurt anyone else!" Buttercup concluded.
"This calls for...FURIOUS FIERY FELINE!" Blossom shouted, as the girls merged into...a giant, flaming cat.
"I nearly forgot they could do that." Midnight Moon said.
"And you call yourself a cartoon expert." Lady Gothika smirked.
"Well, they only did it ONCE." replied Bat-Mite.
The animals soon panicked and ran off.
"It's working!" The Girls beamed.
The animals soon went back into their cages.
"Here," Saiyaman said, twisting metal bars together to shut the cage doors. "This'll hold until the zoo officials can order more doors."
"Good thinking, Saiyaman." Blossom smiled to that.
"But where's Fuzzy and Ms. Bellum?" asked Nature Girl.
"Over there!" Bubbles pointed out.
"Don't worry, Ms. Bellum!" Blossom called out, flying over. "We'll save-"
"20!" Ms. Bellum's voice snapped and soon whammed Fuzzy onto the ground. "Too bad this creep didn't know I'm a 10th level black belt in full-contact Kyokushin Karate."
Bat-Mite clapped. "Way to go, Miss Bellum!"
"Wow, Ms. Bellum, you rock!" Buttercup added.
Ms. Bellum smiled bashfully and thankfully for them.
"Come on, Girls, we're gonna be late!" The Professor cried out, screeching by in his car beside his superhero daughters.
"But Professor, we just saved the day!" Blossom said.
"We helped too!" Saiyaman added.
"That's great, and I'm very proud of you, but we've got to get moving!" The Professor beamed.
"Going to a science fair?" Lady Gothika asked.
"Oh, even better than that!" The Professor beamed.
"I've never seen the Professor this excited." Buttercup commented.
"Me neither," replied Lionel, as he and the others changed back. "Feels weird..."
"True, Buttercup and Lionel, it's not every day you get a tour of-" The Professor beamed.
"DEXTER'S LABORATORY!" A new voice announced as they soon came altogether into a new scenery with a new, but old face. "Well, well, well, if it isn't my old friends: The Powerpuff Girls!"
"Erm... Hi, Dexter." Blossom blushed a little.
Dexter chuckled sheepishly. "Eh-heh...hi, Blossom. Nice seeing you again..."
Bubbles giggled while Buttercup smirked.
"Anyway, YOU invited US, Dexter." Buttercup then said.
"Hey, Dexter," Cath smirked. "This is really cool."
"Dexter, this is our dad, the Professor, and Mo's brother, Timber Spruce!" Blossom introduced.
"Oh...it is a pleasure to be making your acquaintances." Dexter replied, shaking hands with them.
"Good to meet you too, Dexter," The Professor smiled to the young boy. "Professor Utonium's the name. It's a real honor to meet you in person, Dexter. I just can't wait to get a tour of your lab. You know, when Blossom first told us about that adventure you all took traveling through time-"
"Ah, ah, ah, Professor Utonium," Dexter interrupted, waving his finger. "I believe we had worked out an agreement via inter-dimensional email."
"Ah, yes, of course." The Professor replied.
"What's that mean?" Cath asked.
"They made a deal with each other through email?" Cherry replied. "Whatya think it means?"
"I think it was like an arrangement they made." replied Lionel as Professor Utonium handed Dexter a vial full of Chemical X.
"One small sample of Chemical X for you to study," The Professor told Dexter. "Now, this is a very powerful and unpredictable chemical, Dexter."
"He's right," Timber added. "You have to promise not to do anything evil with it. Not that I think we have to worry about that from you."
"Please, you two!" Dexter replied. "Outmoded concepts of good and evil have no place in the house of science! Ours isn't the business of what IS, what ISN'T, and what MAY BE!"
"That's a pretty good point." Atticus remarked.
"Also, Dexter is a good guy! If there's anyone you should watch out for, it's his jerky rival Mandark!" added Lionel.
"Gosh, I guess that's right," The Professor chuckled, holding the vial out to the boy genius. "Here you go, son!"
"Now that that's out of the way, shall we begin the tour?" Dexter smiled.
"Totally!" Cath beamed. "I'm a big Cartoon Cartoons fan!"
"We know," Lionel replied. "As am I!"
"I'm probably bigger~" Cath smirked.
"Not a contest." Cherry told them both.
"Yippee." Buttercup rolled her eyes.
"You said it, Buttercup!" The Professor beamed.
"Whoooa..." Cath gushed, looking at the various screens of characters in the background. "Cow & Chicken... Johnny Bravo... Ed, Edd, n Eddy! Some of the best cartoons ever put on Cartoon Network!"
"Heck yeah!" Lionel replied. "These guys are all classics! I think we met a bunch of them during the Super Secret Crisis War crossover!"
"You brought THEM to do that and not me?" Cath pouted to Cherry.
"You are so picky sometimes..." Cherry rolled her eyes a bit.
"Ah, yes, thank you for reminding me, Lionel," Dexter said to that. "Ever since our multi-dimensional adventure, I've been picking up trails leading to various worlds left behind by Vilgax and Aku's robots. By following these trails, I can discover the entryways to the various realities that make up the multiverse!" he then began to explain. "These windows all connect to a giant database that in turn connects to a molecular transport machine. It's still in the trial stage, but when calibrated correctly, it will allow for travel between these worlds. This will eventually make visiting old friends like Ben 10 and Samurai Jack as simple as walking across the street."
"Cool." Atticus smiled.
"Wow! There's so many!" Blossom beamed from the sights.
"And I can hardly wait to meet 'em all again!" Lionel added. "It's like...like...a great big doorway between worlds!"
"I gotta check this out!" Cath added.
"This is Monkey!" Dexter then introduced his animal friend who was running on a treadmill. "He is earning his keep by helping me in my experiments with kinetic energy."
"You know, I used to have a lab primate too!" The Professor smiled before thinking back. "It... Sort of went sideways."
"Right... Mojo Jojo..." Lionel winced. "That became a whole thing..."
"Well, I have some advice," Timber offered. "The key to an animal assistant is that they always know who's in charge... Well, most of the time for the Professor's case."
Bubbles soon glanced over as she thought she saw something.
"If you will continue this way..." Dexter told his guests.
And so the group followed behind Dexter as he continued to show them around his lab. Bubbles and Cath soon wandered from the group.
Dee Dee was shown to be hiding, thinking that she got away freely. "Whew! Close one."
"Hi! What's your name?" Bubbles smiled to the older blonde girl.
"Jinkies! It's Dee Dee!" Cath gasped.
"Oh, great." Dexter groaned, face-palming.
"Sorry, you scared me!" Dee Dee smiled to Bubbles and Cath. "I'm Dee Dee, Dexter's sister! You can fly?"
"I didn't know Dexter had a sister!" Bubbles beamed.
"Yep!" Cath replied.
"Buttercup! Blossom! Atticus! Cherry! Mo! Lionel!" Bubbles called out. "Come meet Dexter's sister!"
Lionel blinked. "Oh, we've met Dee Dee..." he replied.
"Dee Dee! What are you doing in my laboratory?!" Dexter glared. "I told you I had a very important tour scheduled for today! GET OUT!"
"I just wanted to meet your new superhero and adventurer friends." Dee Dee smiled innocently.
"Stop being such a crumb, Dexter." Buttercup crossed her arms at the boy genius.
"Look, you guys aren't from around here, so I'll explain: my sister is a walking wrecking ball," Dexter explained. "It is in everybody's best interest that she leaves immediately."
"I agree." Mo said as she began to try to push Dee Dee out of the lab.
"He has a point," Lionel replied. "In every case Dee Dee has been inside the lab, all she does is wreak havoc and cause lots of destruction."
"Fine, I'll leave," Dee Dee smiled innocently. "But first, let me entertain you with my new dance!"
"It's probably about that Pony Puff Princess stuff or girly junk," Cath said. "Better skip it, right, Buttercup?"
"I wanna see where this dance goes." Buttercup shrugged.
"But I thought you would hate dancing?" Cath said. "You're the tough and mean one."
"Yeah, but it doesn't mean that's all there is to my character," replied Buttercup. "I learned that after I went to that monastery."
"Ya know, Cath, just because Buttercup's a tough fighter and aggressive a lot doesn't mean she hates everything feminine or would threaten to beat someone up at the drop of a hat." Cherry advised.
"Yeah! I'm a superhero, not a psychopath!" Buttercup added.
Dee Dee soon danced for all of them as the others decided to humor her for a little while.
"Ooh!" Blossom smiled.
"She's a good dancer!" Bubbles added.
"She's got the moves!" Buttercup approved.
"NO! Do not encourage her!" exclaimed Dexter. "Everything that has gone wrong in this lab is my sister's fault! It always starts with the dancing..." and as he said that, Dee Dee tripped over a wire. "Seriously, she is a series of elaborate accidents waiting to happen!"
Lionel pointed to the unfolding disaster. "You mean like THAT?" he asked.
"SEE WHAT I MEAN?!" Dexter cried out. "Dee Dee! Watch out for the-"
Dee Dee grunted, hitting against the table with the vial on it and it soon shook loose, about to fall on her.
"CHEMICAL X!" Everyone else panicked.
The Chemical X soon broke free and splattered onto Dee Dee, transforming her into a hideous monster.
"Dee Dee...?" asked Bubbles. Her only response came in the form of a monstrous roar.
"Stop her!" exclaimed Dexter. "The Chemical X has turned her into a wild mutant monster! She will wreck my lab!"
"Wow, you weren't kidding." noted Buttercup.
"Dee Dee, calm down!" Bubbles cried out.
Dee Dee soon punched her away into a wall.
"So much for reasoning with her!" Bubbles then glared.
"I'm sorry about this, Dee Dee." Atticus said before going to tackle down the monster girl.
But Dee Dee just smacked him aside, before Blossom used her ice breath to stop her. "That ought to cool her down!" she remarked.
"I thought you said Atticus was an indestructible god who couldn't get hurt." Cath said to Cherry.
"One, she never said he was an indestructible god, you're just exaggerating," replied Lionel. "Two, just because you get knocked aside doesn't mean you got hurt."
Dee Dee soon broke out from the ice prison.
"Ugh, this is impossible!" Mo complained as she used her vines only for them to be snapped apart.
"Quick! Create a laser-vision cage to hold her!" Blossom suggested.
"No! Atomic Snot Rocket!" Buttercup replied. "We never do that one!"
"Let's do The Fire Cat one!" Bubbles smirked.
"Get her away from The Inter-Dimensional Molecular Transporter!" Dexter yelped as his sister got away.
"Too late!" Timber yelped as Dee Dee was now out of the lab. "She's gone!"
"What happened to her?" Blossom asked.
"She must have accidentally transported herself into another dimension!" The Professor replied.
"Yes, but she damaged the Interdimensional Tracking System!" replied Dexter. "Without it, it will be impossible to know where she went! She could be anywhere! And in her unstable, mutated form...she will be nothing but trouble."
"Great... Now what?" Cherry sulked a bit.
"Then we'll use our magic to bring out a tracker to find her." Cath suggested.
"Convenient!" Cherry replied, with a bit of a deadpan as that seemed to be an 'ass pull'.
"I WAS going to construct one using my vast amount of technology..." replied Dexter sadly. "But sure, go ahead and ruin my fun..."
"What?" Cath asked before looking to Cherry. "Isn't that what you guys would do?"
"Not unless Dexter would have a scientific solution," Cherry told her. "Cath, we know you wanna go on adventures with us, but you need to look closely at what we do and when it's necessary rather than just assume. Yes, you have magic, so do we. Yes, you have superpowers, so do we. Yes, you wanna help out and save the day, but we've told you in Toy Story, you have to be patient and be a friend and use teamwork."
"So we can at least let Dexter do what he can to help." added Lionel.
"Well, all right..." Cath mumbled. "What do you have that we CAN use, Dexter?"
"Hmm... Let me check my things..." Dexter paused as he went to explore his own inventions.
"If not, then we can try back in Townsville." Timber suggested.
"That could work," Lionel replied. "Perhaps we could combine stuff from Dexter and Professor Utonium's labs!"
"Yeah, let's try that out." Timber smiled.
"Well said, Timber Spruce." Atticus smiled back.