Our story begins with a small beginning which is a very long time ago. A mouse was shown scurrying off and found some food for himself and was about to eat it before panicking as the other animals of the forest were stampeding away in a panic which made the mouse join them. Three people were seen running together as they were on some sort of expedition, two men and one woman.
"Here, the chest! Now, Vincent!" One man told the other.
The chest glowed as the wind blew and shadows formed around the chest.
"Get ready," The woman alerted the two men. "We've almost got him!"
"Do not fear, my dear sister, I promise you it'll be fine." The first man replied as he held the chest.
They were surrounded by dark shrouds before a devilish image appeared with glowing white eyes appeared behind them before roaring.
"NOW! DO IT NOW!" The second man begged.
The first man soon opened the chest which cast a bright light against the devilish form. The devilsh form roared as he was being sucked in into the chest. The first man was knocked out from the bright light with the chest out of his hand.
"Vincent!" The woman cried out for him.
There were swirling clouds in the sky which panicked the trio. The first man soon fell as he yelled out before hitting the ground.
"Vincent, what is it?" The second man asked.
"Mortifer... Vaskila... Did... Did we...?" The first man muttered out.
"Yes, we've caught him!" The second man smiled, helping him up.
"That's all thirteen," Vaskila soon smiled. "It's finally done."
Vincent soon picked up the chest until they heard something in the woods and there were glowing eyes behind the trees.
"Done? Hardly," Vincent replied. "Evil's minions will stop at nothing to open this chest and release once more the plague of their thirteen masters upon our realm. We have a duty, Mortifer and Vaskila."
"Of course," Mortifer sighed. "We need to split up if we're ever going to have a chance. Give me the chest."
"No, it's too dangerous," Vaskila told him. "We won't let you."
"Then run," Mortifer replied. "I'll distract it."
Vaskila felt nervous.
"It's all right, my dear sister." Vincent comforted her.
"I hope that he will be alright." Vaskila pouted.
Mortifer soon used some magic dust to make an illusion and soon ran off when he could. The eyes began to follow him as he ran off.
"Go! There's no time!" Mortifer told the siblings.
Vincent and Vaskila didn't want to, but they had no choice and soon ran off with the chest, but stopped when they heard Mortifer cry out in distress.
"Oh, no! Mortifer!" Vaskila cried out.
The shrouds soon grabbed Mortifer as he tried to fight them off, but had little to no avail. They soon levitated him in the air before dropping him into the bushes before attacking him from there. There was a bright light shown before the bush was vaporized and both Mortifer and the shrouds were gone.
"Mortifer!" Vincent gasped before he had tears in his eyes and left with his sister.
"What do we do now?" Vaskila frowned.
"We have to keep going." Vincent told her.
Vaskila frowned and soon walked off with her brother to start a new journey.
Many years had passed as the siblings kept the demon chest secure as best as they could, but some time had changed, especially into recent years.
'Once upon a Demon Chest, where evil spirits manifest,
The best of friends began a quest, and set out like a thing possessed,
In every corner of the land, With a kid named Flim-Flam, and a van,
And steely hearts at their command, and they faced their fears, and made their stand,
They thwarted Evil Maldor's best, And broke the Shadow Demon's curse,
And off to Vericrash, to rendezvous with something worse,
From witches quoting haunted rhyme, To speeding up the sands of time,
Into Demongo's comic crime, They fought and caught the demons nine,
Phantazmo, Rankor, Zimbulu, Do these sound like good guys to you?
Well, thanks to our intrepid crew, Into the chest, they each withdrew,
But now their hunt is nearly through, their final hunt pursue, to capture one last bugaboo,
The 13th Ghost of Scooby-Doo'
Many years later, we are shown a closed mall with an older man screaming and running away from Mystery Inc.
"There he is!" Brianna pointed out.
The gang soon chased after the man who was running from them, being even more of a coward than Shaggy or Scooby on a good day. Shaggy struggled in running and then had Scooby run further for him. The man looked back from them and soon ran up an escalator. The gang was catching up to him, but it was too late as they stopped and bumped into each other.
"What are you doing, Fred? He's getting away!" Trent reminded.
"Trent, you should never run on a moving escalator," Fred advised with caution. "Safety first."
Brianna made a square shape with her fingers like in the 1970's.
"Can't we at least walk?" Daphne asked Fred.
"Uh... Better not chance it." Fred said.
They were soon going up an escalator together which seemed to run slowly. Daphne and Brianna looked at each other, rolling their eyes and they got off once they made it to the next floor.
"Now what?" Velma asked.
"Relax, everyone. The real trick of leadership is to see the whole situation from above," Fred advised. "Like the very top. Like, say, uh... A human pyramid. That's how you get the best of your team and plan your next move."
"A human pyramid?" Trent replied. "What are you, a cheerleading captain?"
"Not important." Fred said.
Scooby soon sniffed something and began to follow the scent before pointing to the Toy Store. "Thattaway!"
"You see?" Fred smiled as he pet the Great Dane. "Great, work, Scooby! Come on, gang!"
"I wonder about you sometimes, Fred Jones." Brianna commented to herself.
They soon went to go into the Toy Store, but of course, there was a pretzel stand which meant one thing.
"Like, we're right behind ya!" Shaggy beamed.
"Reah!" Scooby added as they came to the pretzel stand.
Meanwhile, the rest of the gang went inside of the toy store, and saw a couple of toys being knocked down which means their target was in the Toy Store.
"We got him!" Fred cried out. "Follow me!"
"Shouldn't we booby trap the door in case he tries to escape?" Brianna suggested.
"That is a pretty good idea." Daphne agreed.
"Guys, I think I know when and when not to booby trap a doorway," Fred chuckled. "Let's go."
"That boy never listens." Brianna sighed to herself.
Daphne looked over to a case filled with bouncy balls and suddenly had an idea. "Bri, I need your help on this." She then told the other girl.
"You got it!" Brianna replied.
The others traveled down an aisle before seeing a giant teddy bear among many other bears. The man was soon shown hiding behind the teddy bear before yelling out in horror.
"Jinkies!" Velma yelped.
The man kept running from them and soon slipped and fell because of the bouncy balls left on the floor.
"Yes! It worked!" Brianna beamed.
"Ruh-roh!" Scooby yelped.
"Zoinks!" Shaggy added.
The man soon crashed into them as they took some soft pretzels. The man was seen to be handcuffed from the pretzel on his wrists.
"Now let's see who old Farmer Morgan really is!" Velma smiled, trying to take off the man's face, thinking it was a mask like usual, but this time, it wasn't a mask, and it was a real face.
"Let me try." Daphne said, but she then had the same result.
"Stop that! This is my face!" Farmer Morgan cried out to them.
"Looks like this ghost went a little heavy on the spirit gum!" Shaggy commented before laughing with Scooby.
"I don't understand," Fred said as he tried to take his turn. "If it's not a mask, then that means he's-"
"The real Farmer Morgan." The Sheriff said as he helped the man up.
This seemed to surprise the others.
"That doesn't make sense," Daphne said to them. "Farmer Morgan is selling the Mall half his farmland for this big expansion!"
"If it goes out of business, he'll lose millions!" Velma added.
"So, like, why does he wanna shut this place down?" Shaggy wondered.
"He doesn't," The sheriff replied. "Morgan didn't stage the mall haunting," he then looked over to the woman in handcuffs. "Mrs. Malvo: the mall owner, did."
"And I would've gotten away with it too, if you had let the meddling to these kids!" Mrs. Malvo complained.
"But... Then why was Farmer Morgan running?" Brianna asked.
"I'm afraid of teenagers!" Farmer Morgan told them which made them gasp slightly.
"Hold the phone... You mean... We were wrong?" Fred replied.
"The term is 'criminally negligent'." The sheriff clarified.
"Criminal?" The gang repeated in shock.
"But we're the good guys!" Brianna pouted.
"How many times do I have to tell you kids?" The sheriff sighed. "Mystery solving is a tough business. Leave it for the pros. There's no room for mistakes. You're almost 18. After that, if someone like Morgan here presses harassment charges, you're looking at prison time."
"Like, gulp!" Shaggy yelped.
"This business is too dangerous for any slip-ups, case in point." The sheriff told them as Mrs. Malvo began to run away.
"She's getting away!" Trent alerted.
The Sheriff shot a tranqulizer dart on her leg so she wouldn't escape anymore. "It's over, kids," he then told them. "There's only one mystery crime-solver in this town, and he wears a badge, also this cool hat. Let this be absolutely clear; if I ever see you drive that Mystery Machine one more mile, I'm putting you away," he then looked to Brianna and Trent. "That goes for your other team as well."
"How do you know about us?" Brianna asked.
"I'm good friends with Drew and Kendra Nelson, so I know all about you." The Sheriff replied.
"Of course you are." Brianna sighed.
"Also, we have a leash law in this town, so, yeah, thanks." The sheriff said as he passed by Scooby.
Scooby looked offended from that. Farmer Morgan and the Sheriff soon walked off from each other, leaving Mystery Inc with a lot on their minds.
The next day at Cartoon Network City, the Mystery Inc group had a yard sale, selling everything that they earned from solving mysteries. Even Fred had to sell the Mystery Machine.
"That is the saddest sight I've ever seen." June commented once she saw the Mystery Machine just gone like that.
"I don't understand why we have to unload everything." Daphne said.
"I can't believe I just sold the Mystery Machine!" Fred sulked.
"Fred, no one said it would be easy to retire." Velma said, putting her hand on his shoulder.
"This has to be a dream, right?" Cindy commented.
"Come on, guys, let's go talk to Bri." Mike suggested.
"Excuse me, guys." Brianna said, passing by Shaggy and Scooby who were in lawn chairs, trying to relax since they didn't have to solve mysteries anymore.
"Hey, Bri." Mike said.
"Hey, guys." Brianna sighed as she looked upset.
"Are you doing all right?" Double D asked.
"Not really," Brianna frowned. "I can't believe that we have to retire so early. We've been solving mysteries ever since we were little kids, but now... It's all over."
"We're really sorry." Double D said.
"It's okay," Brianna frowned. "It's just hard to think that it's all over now."
"You've been doing it for 50 years!" Ed said.
"It's been a long time, Ed, but not that long." Brianna rolled her eyes.
"You can't retire now!" Eddy said as he checked out the knight's helmet.
"We have no choice," Brianna replied. "If the Sheriff sees us doing this again, we'll be going to jail."
"That sucks." Eddy said.
"It's okay," Brianna sighed a little. "It was bound to happen sooner or later anyway. Maybe I could try out for cheerleading or gymnastics."
"But you guys can't quit now," Dee Dee pouted. "You guys are the best teenage detectives we know."
"Sorry, guys, but we have no choice." Brianna reminded her.
"There must be something we can do." June said.
"Well, if you figure it out, let me know..." Brianna sighed. "I even made a scrapbook too."
"Uh, guys, a little help?" Eddy muffled as he got the knight helmet stuck on his head and he was now trying to get it off.
"Why did you put it on in the first place?" Jo rolled her eyes to that.
"It looked cool on me." Eddy replied.
"No, it looks dumb." Jo deadpanned, taking the helmet off of him.
"Haven't you heard of girls liking a knight in shining armor?" Eddy smirked.
"Yes, but they want a knight who isn't short." Jo retorted.
"Hey!" Eddy pouted to that.
"Ah... This is the life, Scoob," Shaggy smiled to his best friend. "No more mysteries, no more ghosts, and no more year round fancy attire!"
"Hey, I like your style." A man in a floral shirt smiled as he walked by.
"Thank you!" Scooby smiled as he took a drink before letting out a small burp and looked bashful.
The Mystery Machine soon drove off which looked a bit heartbreaking.
"This just doesn't feel right." Trent commented.
"I love my Mystery Machine," Fred sulked as he soon walked away, feeling upset. "I feel like I just sold a part of myself."
"Aw, Fred." Trent frowned.
"I know how ya feel, guys, but it's not like we have a choice," Velma commented. "Besides, it's already done. We already closed all of our cases and have no unfinished business. None whatsoever."
"Eureka!" The man called out as he took something out of a box. "How much for the crystal ball?"
"What mortals have a crystal ball?" Cindy commented.
Shaggy, Scooby, and Daphne soon gasped.
"We have a crystal ball?" Velma asked out of confusion.
"Oh, no, I thought we got rid of that." Brianna whispered to herself.
"Um, I don't think-" Daphne spoke up.
Shaggy and Scooby soon rushed over to take care of the crystal ball.
"Like, put that thing away!" Shaggy yelped.
Scooby ran around the man and the crystal ball soon went flying before landing in Shaggy's hands.
"Oh, man... I know that glow..." Shaggy frowned as the crystal ball glowed green.
"Shaggy? Shaggy! Is that you?!" A man's voice called out.
"Did that thing just...?" Eddy began to ask, uneasily.
Shaggy threw it on the ground and a man's face appeared on the crystal ball.
"Kids, I've been trying to reach you on this thing for months!" The man on the crystal ball called out to them. "Daphne? Brianna? Shaggy? Scooby-Doo, where are you?"
"Ah! Ah! He said it!" Peter Griffin smiled out of excitement as he made a random cameo.
"We're here," Daphne said, picking up the crystal ball. "What's up, Vincent?"
"Vincent?" Velma questioned.
"I think he prefers Mr. van Ghoul." Shaggy replied.
"No, no, Vincent is fine," The man replied. "Listen, I've found him... Or rather, he's found me."
"Oh, no." Shaggy muttered.
"What do you mean?" Brianna asked the wizard.
"The 13th and final ghost," Vincent clarified. "You must come at once to catch him so we can seal The Chest of Demons forever! Hurry, I can't hold him off much-" he then struggled a bit before the crystal ball soon turned off.
"Vincent? Vincent!" Daphne cried out.
Shaggy and Scooby soon gulped.
"Like, I guess we've got some unfinished business after all." Shaggy said before crying with Scooby.
"Who is Vincent van Ghoul?" Fred asked.
"What's a Chest of Demons?" Velma added.
"And will you take a personal check?" The man asked.
"NO!" The others told him.
"All right, it's just a question." The man said before walking off.
"Girls, are you gonna tell us what's going on?" Trent asked Daphne and Brianna.
"Yeah, I wanna know!" Jo complained. "I hate being left out in the dark!"
"Uh, Bri, is there something you aren't telling us?" Mike asked the brown-haired girl.
"We promised that we would never talk about this." Shaggy whispered to the girls.
"We have no choice," Brianna told him. "Vincent is in trouble, and it's all our fault."
"Our fault?" Fred and Velma echoed.
"Listen... Something happened," Daphne told them. "That summer Fred and Velma were away at camp..." she then began to explain everything while Brianna helped out a bit.
They soon met in Daphne's bedroom after hearing the stories.
"Real ghosts?" Velma asked.
"Velma, what about those other times?" Cindy replied. "Zombie Island... The Witch's Ghost... The Alien Invaders... A whole lot more, plus a lot of people in The Cartoon League who have unique abilities. Surely you haven't forgotten those times."
"Ugh, how did I think this was practical?" Daphne complained, tossing a dress aside to Fred's face. "Bri, do you still have that outfit that I got you for Christmas?"
"You bet," Brianna smiled. "I'll put it on."
"This is insane," Fred said to the girls. "I can't believe that you never told us about this."
"And we're all friends here," Eddy added. "Bri, how could you do this?"
"The whole thing really traumatized Scooby," Brianna replied. "He almost had a nervous breakdown so we decided to never bring it up again."
"But you said there were only 13 ghosts and you only caught 12," Fred replied. "Didn't you think with one on the loose, it might come up again someday?"
"Listen, if you're worried about Scooby, don't be," Daphne smiled. "He's conquered his demons... 12 of them at least."
"Oh, this one has to be it." Brianna pointed out to one outfit.
"Yes," Daphne smiled and soon took it before putting it on, looking very different from how she looked now, she then saw a golden crest pin which was of a Witch's Star and she put her hand on it before looking to Brianna. "What do you think she's up to?"
"Hard to say... She was such a sweet girl..." Brianna smiled. "So cute and full of life..."
"Yes, she was..." Daphne smiled back.
Brianna put on a different oufit which was a blue shirt, black pants, boots, and her hair was styled in high pigtails.
"I knew I made the right choice." Daphne smiled.
Daphne soon took off her headband and began to change her hair. First was a short and curly hairstyle before she tried something else which looked a lot better for her. "Whatya think?" she then asked as she posed for the others.
"You look like something out of 1985." Cindy commented.
"Whoa! Who are you?" Fred asked Daphne out of shock.
Brianna put on black gloves and a black jacket to complete her style. "There we go," she then smiled. "Now, how do I look?"
"Like someone trapped in the 90's." Eddy replied.
"Meh." Brianna replied.
They then moved onto the garage and Shaggy and Scooby were shown, wearing a lot of protective gear.
"Oh, come on! Even I think that's a little excessive!" Cindy complained.
"What are you two wearing?" June asked them.
"Not nearly enough!" Shaggy replied.
"Uh-uh." Scooby added in agreement.
"Man, and I thought that Butler was bad with those good luck charms she wore on Friday the 13th." Jo commented.
"Wait, is that a compliment?" Cindy asked.
"Sure," Jo shrugged. "Whatever floats your boat."
"Relax, boys, we've already handled 12 of these, would one more kill us?" Brianna asked Shaggy and Scooby.
"Like, dude, that's the question, isn't it?" Shaggy replied.
"Well, we'd love to help you, Daph, but I just sold the Mystery Machine, so-" Fred frowned at first.
"Don't worry; I've got it covered." Daphne smiled, uncovering a different van which was big and red.
"Whoa!" Cindy gasped.
"It's way cooler than my brother's car!" Eddy added.
"You have a van too?!" Fred asked Daphne and Brianna.
"It's not a van," Daphne replied. "It's a stragetic ultra mobile command unit."
"It looks like a van." Mike deadpanned.
"It was a van," Brianna replied. "Then Vincent had a few upgrades installed."
"MM?" Fred asked once he saw the initials.
"Don't worry, Freddy," Daphne smiled. "There can only be one Mystery Machine."
"What does it stand for then?" Fred replied.
"Mike's name?" Eddy joked.
Mike rolled her eyes to that.
"Let me guess; the 'Miss-Tery' Machine?" Velma smirked.
"Uh, no, but that's way better," Daphne replied. "Let's call it that."
"Agreed." Brianna nodded.
"Okay, whatever," Fred said as he got into the driver's seat. "Everybody hop in, and-Uh-oh, wait. Wait, wait! This is a stick! I can't drive a stick!"
"Everybody in, don't worry, there's plenty of room," Daphne said as she pushed Fred over as she took the wheel. "We're burning daylight!"
Everyone then got into the van and got ready for a new road trip in a brand new van. And with that, Daphne drove off.
"I'm kinda squished." Double D grunted.
"Me too! Eddy, can you move a little bit?" Cindy added.
"I can't! Ed is hogging my space!" Eddy told her.
"Just try to adjust, guys, it'll be fine, I promise." Brianna told them.
"That's easy for you to say." Eddy grumbled.
"Perhaps we should move to some different seats." Double D suggested.
"Good idea." Cindy replied.
Brianna and Daphne just sighed as Daphne continued to drive.