Our heroes kept flying on their jet packs on their way to Superman's place.

"Yo Dynomutt!" said Dee Dee "We there yet?"

"Be patient Dee-Dee" said Dynomutt "I have to follow my map's guidance."

Brenda and Skip were holding hands while they were flying.

"See baby?" He told his fiancé "There's noting to worry about. Just smooth sailing right?"

"Right" Brenda smiled "Thanks Skip. You're so good to me."

"I think I'm gonna hurl" Augie said sarcastically.

"Bleh" Elmo stuck his tounge out.

During the flight, Daphne noticed that Shaggy was holding onto a rock.

"What's that rock for, Shag?" She asked, pointing at the rock.

"Like, just in case we encounter Luthor again, Daph." Shaggy replied.

"I've seen Shaggy brave before, but not prepared." Scooby remarked.

"Yeah," said Daphne "He and Scooby have been brave before."

"Yeah," said Dee-Dee "Wish I could say the same for Brenda. She's a big baby."

Before Brenda could say something, Blue Falcon announced, "We're here, kids."

By that point, they were in front of an apartment building.

"This must be Superman's place." Shaggy pointed out.

"I know which window he's in, but I can't find a way to get in" Krypto pointed out.

"Don't worry Superdog," said Mudsy "I've got a plan."

"Uh-oh" Skip said.

Mudsy grabbed into Krypto and they turned invisible and Mudsy's carried Krypto right through Superman (or Clark Kent's) window. They got in.

"Okay Superdog," said Mudsy "We're in."

"Alright." Krypto replied.

Krypto saw Clark Kent's room across the apartment and ran there.

"Ruff!" Krypto scratched the door with his front paws "Ruff! Ruff! Ruff!"

Clark got up from his bed and opened the door.

"Krypto?" He asked "What're you doing here? And how'd you get into my apartment?"

"Ruff!" Krypto turned his head to where Mudsy was standing.

"AAAAHHHH!" He shouted "It's a ghost!"

"No, no...wait!" Mudsy raised his arms as Clark started to panic. "I come in peace!"

"So, who exactly are you?" asked Clark "And what're are you doing with my dog?"

"It's a long story." Mudsy replied, "But we need your help."

"Why my help?" asked Clark.

"We need Superman," Mudsy explained "And me and my allies know you're him, so you can't hide it. Lex Luthor is after you and Krypto and he's probably on his way now. You gotta help us, assist, be there even."

"Me, Superman?" Clark asked in disbelief. "How can a clumsy, cowardly reporter like me be the fearless Man of Steel?"

"I know it's you," said Mudsy "Because how could I have my brought your dog here? Plus, I got a friend who reads your comics, so you're not fooling me."

"My comics?" Clark asked. "There's something you're not telling me."

"I'm from another dimension." Mudsy explained. "And in our dimension, we have comics and television shows featuring you, Batman and the other heroes. It's like how you have Scooby Doo on television in your dimension."

"You're kidding" said Clark.

"Nope, I'm not" Mudsy said "Lex Luthor has teamed up with other villains and with their help, he's out to destroy you and other popular characters. He's mainly after your heart."

"My heart?" asked Clark, confused.

Mudsy explained everything to Clark, about Boomerang Land, the hearts and how Dr. Zin was planning to take over and have still popular characters disappear without their hearts.

"Making popular characters like us disappear forever, eh?" Clark commented after the explanations. "In that case, I'll be happy to help out, except for one thing."

"What is it?" Mudsy asked.

"This is not a job for Clark Kent of the Daily Planet. Rather, it's a job for...Superman!"

Clark ran into his bedroom and took off his glasses and ripped off his pajamas and came back in his Superman outfit.

"Heavens to Delaware" Mudsy gasped "It's Superman! I'm so excited! Delighted! Joyful! Amazed, even."

"Now let's go catch us some bad guys!" the Man of Steel proclaimed.

"My friends are right on the rooftop of the building!" said Mudsy "It's Funky Phantom time!"

Mudsy flew right through the window. Superman and Krypto opens the window and followed Mudsy (but not before closing the window).

Outside, the rest of the group saw Krypto and Mudsy being followed by a figure.

"Gosh! I don't believe it!" Dynomutt exclaimed when he recognized the figure.

"It's Superman!" Blue Falcon added as the trio landed in front of them.

"Like, I can't believe it, either!" Shaggy said as Superman walked over to them.

Recognizing Scooby, the Man of Steel asked, "Scooby-Doo and Mystery Inc., I presume?"

"Rhat's us!" Scooby proudly pointed his thumb at himself.

"Like, and don't forget about Blue Falcon and Dog Wonder, too." Shaggy added as he gestured at the two Big City costumed heroes.

"Ahem!" Dee-Dee cleared her throat "What're we? Chopped liver?"

"Right," Superman raised an eyebrow "And you are?"

"Unga bunga!" said Captain Caveman "Me Captain Caveman and these are Teen Angels!"

"Teen Angels...I may have watched an episode of yours back in Smallville many years back." Superman remarked.

"Smallville...Where's that?" Skip wondered.

"Like, I believe that's the small town where Superman, as an infant, was discovered by his foster parents after his spaceship from Krypton landed in the nearby field." Shaggy explained.

"That's right." Superman nodded. "Now, Mudsy has explained everything on what Luthor and Dr. Zin are up to, and I'd be happy to assist you all. We do have to be quick, because I can see that some of you are fading."

"Good thing too" said Augie "Cause we're gonna need all the help we can get."

"Now before we can go find Lex," Dee-Dee told Superman "I just have one question Superman..."

"What is it?" asked Superman.

"Lex Luthor could be after more heroes in Metropolis," Dee-Dee explained "And it would seem that you, Krypto and Streaky are the only ones left. So, you sure there are no more heroes in the city or anyone who could be related to you?"

"But there is another," said Superman "My cousin."

"Your cousin?" Everyone asked.

"I think he's talking about Supergirl, Scoob." Shaggy whispered to Scooby, who nodded in agreement.

"Gee, Shaggy, you just have to be a know-it-all." Skip, who overheard Shaggy's remark, commented.

"Can he help it if he read a lot of Superman comics, Skip?" Daphne asked, not liking it when someone outside the gang decides to make a remark critical of Shaggy.

"Okay, can't we discuss this sometime later?" Scrappy asked, clearly annoyed about the lack of peace and quiet within the group.

"Scrappy Doo's right." Superman replied, "And so is Shaggy. That's Supergirl I was talking about."

"I knew it!" said Mudsy "Two young alien humanoid babies, from the destroyed planet of Krypton...there's a cousin."

"Right." Superman nodded. "Now, we better get moving!"

Superman, Mudsy, Boo, Krypto and Streaky flew into the city with the others on their jet packs.

"How are we ever gonna find Luthor at this rate?" asked Daphne.

Just then, the ground started shaking, even more than before.

"J-j-jeepers" Daphne stuttered "What's all that?"

"Luthor," said Superman "He's on his way!"

Just then, Shaggy saw something "Zoinks! I think he's like, coming faster than I thought."

Meanwhile, the Neptunes have arrived at Big City in search for Biff and Shelly.

"Now, we better hurry and find those two, guys." Bubbles said as they arrived at Big City.

"Yeah," said Clamhead "We can't be together without them!"

"Don't worry buddy!" Jabber proclaimed "We will search day and night-"

"But only have a half a day before we all die" Bubbles pointed out.

"Shut up!" barked Jabberjaw "As I was saying, we will keep searching all around Big City, no giving up! No resting till we find-"

"There they are!" Bubbles pointed to the Big City Park, where she saw Biff and Shelly sleeping in each others' arms.

"Wowee wow wow!" said Clamhead "That was quick!"

"So much for an epic journey" Jabberjaw rolled his eyes.

They ran to the bench that Biff and Shelly were sleeping on.

"Hey, Biff, Shelly, wake up!" Bubbles said as the Neptunes approached them.

They were sound asleep. They didn't wake up.

Clamhead shook them gently "Come on guys, wake up."

They were still asleep.

"I got an idea" Jabberjaw picked them up and shook them "Wake up sleepyheads!"

Slowly, Biff and Shelly's eyes started to open and they saw their friends right before them.

Biff yawned "Guys?"

Jabberjaw, Bubbles and Clamhead hugged them.

"Oh boy, oh boy," Jabberjaw hugged them "We were so worried about you."

Shelly sighed "I never thought I'd say this, but it's great to see you Jabber."

"Now that's respect!" Jabber picked up Shelly and kissed her on the cheek.

"YUCK!" She shouted "Gross!"

"We've been so worried about you!" Bubbles tightly hugged Shelly.

"Uh, Biff?" said Clamhead "Why are there pink lip marks on your face?"

Biff shared a glance with Shelly before the former replied, "Can we discuss this later?"

"Yeah! I want to go back and help save the world." Shelly added.

"No worries gang," Jabberjaw took out the button "I got our ticket home. Hold on right everyone, this is gonna get pretty shocking."

Everybody held hands (and fins). Biff and Shelly smiled at each other when they saw their hands together.

"Ready gang?" asked Biff.

"Ready!" said everyone else.

Jabberjaw pressed the button and they were zapped back to Boomerang Land.

Author's Note:

The Neptune's have been reunited and it feels so good and Scooby and the gang have found Superman! So stay tuned for our next chapter coming pretty soon!