And here's the first chapter of Nicktoons: The Final Countdown. There are some strange things happening in the future. Is everything the same in the present?

Enjoy…

Chapter 1: Nostalgic Battles

In Retroville, Professor Calamitous, Mr. Crocker, Vlad Plasmius, and Plankton of the evil Syndicate were hiding in an alley after committing a crime. Plankton was riding in a metal sphere that was hovering above the ground, and Calamitous was on a pair of large robotic legs as he held a small dome with a piece of glowing green rock.

"At last we've acquired it." Calamitous said in a proud tone. "The piece of Ectoranium that Neutron was keeping in his lab."

"It seems like only yesterday that thing was part of the meteor that ruined my life." Vlad mentioned in a dour tone.

"Enough jabbering." Plankton interrupted. "Let's just go to your lab and do what we want with the thing."

"Of course." Calamitous agreed. "Once I've extracted the Ectroranium that weakens ghosts, we'll be able to subdue that Phantom child and any other ghosts that stand in our way of establishing victory."

"Not until you get around to establishing a testimony for when you go to prison." Danny's voice called out.

The Syndicate turns and sees Jimmy Neutron, Danny Phantom, Timmy Turner, Tak, and SpongeBob SquarePants standing at the front of the alley.

"I think you bad guys have something that doesn't belong to you." SpongeBob said to the Syndicate.

"If you thought breaking into my lab without tripping the security alarm would be simple, you are erroneous." Jimmy pointed out. "It's improbable even with ghost powers."

"So are you gonna return it and come quietly?" Tak asked.

"Or are we just gonna have to go straight to the butt-kicking?" Timmy added.

"Foolish Nicktoons." Calamitous said as he placed the dome next to him. "Your attempts to stop us will only lead to your destruction. Syndicate Attack!"

"Nicktoons Unite!" Jimmy shouted as the two groups split apart to begin their attack on each other.

Danny flew forward. "The sidewalk has your name on it, Plasmius." he said with a smirk. Then he gave a large kick down at him, and sent him down to the ground. "And now it has your face!"

SpongeBob then upper-cut Mr. Crocker with his karate gloves, and he fell backwards onto the ground. He weakly lifted up his index finger and struggled to say, "I'm going to give you…an F for this!"

Plankton fired lasers from the levitating device he was inside which Danny quickly blocked with a ghost shield before it could hit him.

Tak fired a magical blast from his staff that hit Plankton's machine and it spun around rapidly. Timmy then ran over and knocked it away with his giant green hammer. The device hit the wall and fell to the ground. Plankton quickly got out and had a dizzy look as leaned out of it, covering his mouth as if he were about to vomit.

Professor Calamitous stood facing Jimmy, who held his tornado blaster at him. "You and your team may be a match against us, but we will still be victorious." Calamitous replied as he lifted the robotic right foot.

Jimmy prepared to fire his tornado blaster at him, but the robotic foot stomped on his weapon and held it to the ground. Jimmy struggled to pull it away, but his strength was not enough. Then he looked up and noticed Calamitous pointing a laser rifle at him.

"Any last words, Neutron?" Calamitous asked with a smirk.

However, Jimmy smirked back. "Actually, yes." He replied, and then shouted, "SpongeBob! Danny! Defensive Maneuver 13!"

The two Nicktoons hear this, and SpongeBob reached into his pocket and pulled out his bottle of bubble soap. He took out his bubble wand, but then dumped the bubble liquid on the ground, letting the soapy water spill toward the robotic suit. Once the liquid went under his feet, the robotic feet began to slip.

"What?" Calamitous exclaimed in shock as he struggled to work the controls.

Then Jimmy quickly grabbed his weapon, and Danny flew Jimmy into the air to avoid the soap as Jimmy fired his tornado blaster, blowing the robot down.

Calamitous toppled backwards next to Crocker, Vlad, and Plankton. The dome with the meteor rock rolled on the ground until Jimmy stopped it with his feet and picked it up. Jimmy held the dome with one hand as he stood in front of the defeated Syndicate with Timmy, Danny, SpongeBob, and Tak behind him.

"And that's why it is important to never underestimate us." Jimmy proudly said, "Because we'll always be together to stop you and anyone else who threatens our worlds."

Everything then began to fade into white until everything came back into view. A much older Jimmy Neutron was sitting at a school desk, wearing a white long-sleeved shirt, a blue tie with his yellow atom symbol, blue pants, and brown shoes. He was leaning on his desk with a bored expression on his face

'Or…at least that's what I thought.' Jimmy's voiceover said.

Then a school bell rang, snapping him out of his daze. He stood up from his desk and grabbed his backpack as he began to walk out of the classroom.

Out in the school hallway, he met up with Carl, Sheen, and Libby, who were also older now and wearing the same uniforms as Jimmy, except Libby was wearing a blue skirt. Jimmy was noticeably taller with his new age, now standing taller than Carl and Libby, and almost reaching Sheen's height.

"Hey, Jimmy, how about we all hit the Candy Bar?" Sheen enthusiastically suggested.

"Yeah," Carl contently agreed. "They're serving the new Triple Scoop Sundae with chocolate sauce and extra marshmallow bits."

"No thanks, guys." Jimmy nicely said with a weak smile. "You can go without me. I have to get back to my lab and work on some upgrades for Goddard."

"It doesn't actually hafta do with the fact that your thinkin' about your old team again, is it?" Libby asked with a smile. "I saw you in there."

"You were staring at him the whole time?" Sheen asked, looking surprised. "What about me?"

"What?" Jimmy asked in surprise at what Libby said. "That's not true. I told you before, I'm past all that."

"I kinda miss them too." Carl added. "Especially that sponge guy with the square pants. What was his name again?"

"Or is this about Cindy?" Libby asked again.

Jimmy's eyes widen until he quickly shakes it off with a frown and begins to walk away. "I'll see you guys next week."

Carl, Sheen, and Libby stare at him oddly as they watch him leave, while Sheen asks, "Was it something we said?"

Later on, Jimmy was walking from Retroville High School by himself down the sidewalk. 'In case you're wondering, it's really me, Jimmy Neutron.' Jimmy's voice said. 'You may not recognize me since I am now age fourteen.'

As Jimmy continued to walk, he held his hands behind his head as he tried to relax as bit. 'About what was going on earlier, the thing is that there are no Nicktoons anymore. Shocking, I know. The whole truth about it is that four years ago, we just decided that we should go our separate ways and end our universe-traveling careers and live the way we used to in our own universes without any contact with each other whatsoever. "What made us decide that?" you might be asking, well, that information is unfortunately classified.

'I don't know how the others are doing, but I'm doing just fine. I'm attending my first year of high school and I have become a much more high-level genius than I previously was. I must admit, the adventures I have here on my own are not as spectacular as the ones I had with the Nicktoons, but I'm just fine with that. I'm done with it and I won't be going back anytime soon.'

But while he was walking, something suddenly ran out of the bushes and bumped into him, knocking him down to the ground. Jimmy sat up and groaned in pain as he opened his eyes. "Sorry about that." He said until he noticed the person he bumped into was a boy around the age of ten.

He had blonde hair, and was wearing an orange shirt with blue trimming, a red neckerchief, green and yellow fingerless gloves, brown shorts, and grey shoes. The boy opened his eyes to look at Jimmy, and the genius noticed his eyes were blue. "Why don't you watch where you're going?" the boy rudely said to Jimmy as he held his head.

"I said I was sorry." Jimmy retorted until he stared at the boy agape, "Wait a minute! What are you doing with my hairstyle?" he asked, noticing the boy's blonde hair almost resembled his own hair, except his hair was more coifed down than upward like Jimmy's, and had a cowlick in the back.

"It's my dad's hairstyle." The boy pointed out as he stood up. "Now quit being nosy with me and stay outta my way!"

The boy then quickly ran across the street and went into the bushes on the other side. "Hey kid, wait!" Jimmy called out as stood up. But the boy seemed to be long gone now. "Weird…I wonder if he got separated from his parents or something."

But before he could ponder over this some more, the bushes began to rustle some more as if there were something else in there. Jimmy stared at this and thought, "What now?"

But instead of another child coming out, he was shocked to see a square silver rusted robot that growled viciously at him. He had red eyes, was walking on four legs like a dog that were short in the back and long in the front, had a crooked antenna, an extension cord for a tail, and razor claws on his front hands.

Jimmy gasped as he slowly backed away, but the robot slowly approached him as he snarled viciously with his sharp metal teeth in his mouth.

"Wha…What are you?" Jimmy cautiously asked the bot.

Instead of answering, the robot pounced at him as he growled beastly to which Jimmy screamed and ran out of the way, having the robot slide on the street. The robot sniffed the ground like an animal as if looking for something. But then he turned his attention back to Jimmy and growled viciously again.

Jimmy glared at it and demanded to know, "Where'd you come from? Who sent you here?"

The robot jumped at him again with killing intent. But Jimmy took off his backpack and swung it at the robot, knocking him down onto the street. The robot quickly got up and shook his head as he snarled again.

The genius quickly backed away, but then tripped backwards onto the other sidewalk and fell down. Unfortunately, the robot noticed this and quickly started running toward him with an evil smirk and his tongue hanging out. Jimmy gasped nervously to see the robot charging at him, but he then held his backpack in front of him and pushed a button on the strap, activating the jetpack.

He let it go, and the bag flew toward the robot and hit him, causing the robot to fly at nearby fire hydrant, sending gushes of water out of the top, and knocking the robot unconscious as his antenna fell off his head. Jimmy panted and stood up as he stared and mulled over everything that happened.

Then he saw the robot waking up with a snarl in his voice, but instead of attacking, the robot shook the water of his body and whimpered nervously as he ran into bushes from where he emerged.

"Hey, come back here!" Jimmy shouted as he ran after it across the street.

But once he got to the sidewalk and pulled the bushes apart, he saw the robot had mysteriously disappeared. "That's strange. Where could it have gone?" he wondered. "And who sent it?"

Then he looked across the street, and noticed something watching him from the bushes. It was a small figure in a blue robe, yellow eyes shining out of the hood that was covering his face. As Jimmy stared, mystified by it, the figure then turned away into the bushes.

"And who sent HIM?" he wondered out loud.

Looks like things are going back to the way they used to be for Jimmy. What will he do now? Please review what you think and the next chapter will be up soon.