In the desert Ben, Star, Kevin and Gwen were driving in Kevin's car.

"You two didn't need to come. Gwen and I could've handled this alone. It's nothing, really." said Kevin

"Doesn't sound like nothing. Weird noises, unearthly lights, rumors of weird creatures out here?" said Ben as they left the car.

"Or maybe Kevin wanted to go on a date with Gwen but wanted to make an excuse to say it wasn't a date." said Star

"Granted, the dudes I heard it from aren't totally reliable. But it wasn't a date with Gwen." said Kevin

"Isn't this, like, a big bad-boy thing to do - come out here to the ghost town to drag-race?" asked Gwen

"How should I know? I just know them from auto shop."

"Then why is your name on the wall?" asked Star as she, Ben and Gwen saw Kevin's name on the wall there.

"T-T-that must be a different Kevin."

"Right! Grandpa Max said Los Soledad used to be a big military base back in the '50s. Some kind of research facility." said Ben

"Yeah! Must've been some pretty serious research. Check out these walls. 50 years later and there's still no way in."

"Except those two holes over there." Star pointed out.

"What! No way. These weren't here." Kevin said as they noticed the two holes in the wall.

They drove inside and then stopped and got out of the car.

"Did anyone notice some of them are vaguely person?" asked Gwen

"Weird. Maybe something - I don't know - burned through the wall." said Ben

"Like what?" asked Kevin

"The same thing that burned these weird trails everywhere."

"Look." said Star

"This is a bird." Ben said as they saw the bird skeleton. "And these are lizard bones. They're fossilized."

"And they're not the only thing." said Gwen noticing the phone booth. "It's like someone turned this slate into sand just by standing on it."

"He was probably on hold." said Kevin

"The trail goes to the police station, then to those - I guess they're apartments." said Ben

"Just to review, someone stood here a million years ago and then walked to those buildings that were built 50 years ago?" asked Kevin

"You are not helping. These could be signs of serious DNAlien activity, and it's up to us -."

"I don't think DNAliens are doing this. Because I don't think that's a DNAlien." said Star pointing to a blue creator moving towards them.

"Finally something worth the gas." said Kevin absorbing the stone sidewalk. Star got her wand out and Gwen's hands started to glow. And Ben activated the omnitrix and hit it.

"Chromastone!" They charged but the creator moved out of the wall and touched a building. They chased the creator. Then the building started to fall at them. "Look out!" They jumped out of the way. "It's gone." Then Ben turned back to normal.

"At least the building it destroyed wasn't the library." said Gwen

Kevin then loosed the stone on him. "You really love books." said Kevin

"She's saying we have to research, find out what that thing is. All we know so far is that it's looking for something here on the base." said Ben

They soon found themselves at the library.

"These films are really corroded, but look like this base was built for some kind of time experiment called project Paradox." said Gwen

"Who wouldn't pick the desert outside Bellwood to do top-secret research?" asked Kevin

"They built it here because of the huge quartz deposits." said Ben

"Quartz?" questioned Star

"Maybe they were trying to build the world's biggest wristwatch." said Kevin trying to make a joke but no one laughed.

"He's name's been censored. Whoever he was, his paradox theory was the basis of some kind of experimental tunnel through time."

They soon got to the lab were he worked on the experiment.

"Look like my place after that big party I threw last weekend." said Kevin

Thing in the room looked like they were stretched out. Then Gwen noticed a mark on the floor. "Look. That thing has been here, too." said Gwen

"Only one trail. It either came in here and vanished..." said Ben

"Or it was born here."

Then there was a loud sound. Kevin absorbed the rock floor. Ben activated the omnitrix and hit it. "Swampfire!" Ben walked around were the sound was and grabbed someone. "Got you."

""Swampfire." That takes me back. Or is it forward? It's so hard to tell, Ben. Have we met?" asked the man in a lab coat.

"How do you know my name?"

"Have we met yet, I suppose the question was."

"Hey, it's that dork from the, paradox guy." said Kevin

"You haven't changed at all in 50 years." said Gwen

"Oh, considerably more than that. Gumball?" asked the man as he hold a bag of gumballs.

"No, thanks. Who are you?" asked Ben

"Yeah, What's your name?" asked Star

"You just read my file. I was rather hoping you could tell me. It slipped my mind several hundred years ago." said the man

"Did he just say "several hundred years"?" asked Kevin

Ben looked back and saw the man disappeared. "Hey."

The man reappeared a the door. "By the way, you didn't happen to see a space-time anomaly around here, did you - about ye big, incredibly destructive, virtually unstoppable? No, I must've been thinking of another moment. Ta-ta!" said the man then he left the room.

Kevin ran after him and he disappeared again. "Where'd he..." said Kevin confused.

Gwen looked out a window and saw him. "He's out there."

"He's obviously connected to that creature. We need to talk to him." said Ben

"Oh, yeah, we'll talk." said Kevin then he ran thru the wall destroying it. "Right after the pounding!" The man walked behind a pole and disappeared. "Huh?"

Then he reappeared in the house near Kevin and shut the door. Kevin noticed where he was and destroyed the door and wreaked the place.

The man appeared outside the house. "Was I in there?" He started to run. Ben, Star, Kevin and Gwen started to chase after him. By destroying a building. The man appeared behind them. "That was public property, you know." They looke back and saw him.

"How dose he move so fast?" asked Ben

"You mean, how do I move so quickly?" the man said now across the street. "It's called "walking."" Then he appeared right next to them. "Strolling, really."

"Kevin grabbed him. "That's better."

"Easy on the jacket. It's 1200 years old. Anyway, thanks."

""Thanks"? For what?" asked Ben

"Well, I had a feeling if we made a loud enough racket, he'd show up."

"Finally something we can hit." said Kevin

"Oh, I really don't think that's a good idea."

"Those trails. They're not burn marks. They're... age. The creature accelerates time." said Gwen

Kevin then started to run at the creature.

"Very good." said the man

"Not so fast, ugly!" said Kevin as he tried to punched it but once he touched it he started to age. The man ran after the creature and Gwen, Star and Ben ran to Kevin.

"Kevin!" said Ben as he turned him over.

"Kevin!" said Gwen

Ben turned back to normal. "Just touching that thing aged him 60, 80 years." said Ben

"Okay, lets not touch that thing anymore." said Star. As Ben picked up Kevin.

"What are you doing. Get your hands off me." said Kevin as he made Ben to let him go.

"Come on, Kevin, we're gonna get you some help." said Gwen

"What do you mean, "help"? I'm gonna kick that thing's keister!" Kevin left his foot up. "Oy!"

"Are you okay?"

"My back is killing me. My legs ache. And what's up with these shoes? Is it too much to ask for a little support?"

"He's like a real irritable, Short-tempered, crotchety old man."

"Why are you whispering?!"

"In other words, aside from the male-pattern baldness, he's pretty much the same as always." said Ben

"That's no surprised." said Star

"I'll take those." Ben said as he took Kevin's keys soon after he took them out and tried to stick them into something.

"What do you think you're doing?" asked Kevin

"Driving."

"Don't even think about it. You don't have a license."

"Grandpa Max taught me, and it's an emergency. You're nearsighted, arthritic, your reflex are shot, and you're trying to unlock a cactus."

They got into Kevin's car with Ben in the drivers seat, Star siting in the front seat and Gwen and Kevin in the back.

"You should've gone out with ,e when I was young and handsome." Kevin said to Gwen

"You were too immature." said Gwen

"What about now?"

"Too old."

Ben put it in reverse and then hit some trash cans. "Whoops!" said Ben

"It's not a bumper car!" said Kevin

Then the creature came thru a building.

"Back up, back up, back up!" said Star

Ben started to drive backwards. Gwen saw a building get a whole. "Ben, on the right!" said Gwen

Ben saw the creature in the rear view mirror. Ben made a maneuver to get away from the creature and with it he started to drive forward. Ben drove as fast a he can. Then soon the creature caught up and touched the car. Then the car started to age the paint started to rust and the glass cracked over the car.

"No! No! Not the car! Not the car!" said Kevin

"Hang on." said Ben as he headed for the ramp. Ben hit the ram and jumped up on the roof of a building. They left the car.

"You are never driving my card again!" said Kevin then the car broke down.

"True."

"Where have you been? You were supposed to get here six seconds ago. Or is this thing running fast?" said the man

"Who are you, anyway?" asked Ben

"What are you doing here?" asked Star

"What is that creature?" asked Gwen

"Can you fix my car?" asked Kevin

"There's something different about you. Is it your hair?" said the man

"Yeah, I'm parting it down the middle now, and I also got real old!"

"Don't talk to me about old. I walk in eternity."

"Well, you better start running in eternity, smart guy!"

"Hmm. You might slow us down. I need to fix that. We'll come back right over there." the man said as he pointed to a point. Then 3 seconds later He and Kevin who was back to normal appeared there.

"Kevin!" said Gwen as she ran to him. Ben and Star were surprised that Kevin disappeared. "I can't believe it. You're good as new." Gwen said as she hugged Kevin.

"Well, my back still hurts a little. If I could just lean on you..." said Kevin. Then Gwen lightly pushed him away. "All right, professor, if you wouldn't mind fixing my car."

"How exactly do you expect me to do that? I'm a time traveler, not a body shop. Regressing a car would break all the chronal laws of space-time and -" said the man

"Okay! Enough! I want answers - now." said Ben

"Yeah, we want answers." said Star

"Same old Ben Tennyson and Star Butterfly. You two are more like yourselves now that you were in the future, which, for obvious reasons, I can't really tell you about." said the man

"You want me to hurt him?" said Kevin

"What can you tell us, Mister... Paradox?" asked Gwen

"Paradox. Oh, yes, that'll do. That'll do very nicely. I'll tell you my story in a way you can understand - with a beginning, middle and end. We'll start in the middle. Los Soledad was built entirely because of my ingenious theory - a time tunnel utilizing the properties I discovered in quartz crystals which would allow us access to past and future events." said Paradox

"Yeah, well, for a genius, looks like you blew it." said Kevin

"You don't know the half of it. Some tiny miscalculation on my part destabilized the experiment and ripped a hole in the fabric of reality. I was hurled into the event horizon. I must've spent 100,000 years there. I didn't age or need to sleep or eat. Just exist."

Kevin chuckled. "Sound pretty boring."

"At first I went mad, of course, but after a few millennia, I got bord with that, too, and went sane - very sane. I began to learn. I now have total understanding of the space-time continuum, allowing me to travel anywhere and anywhen I want, within reason."

"So, where's your time machine?"

"He doesn't have a time machine. He has a map in his head." said Ben

"Exactly. I know where all the shortcuts are. I've spent dozen lifetimes crisscrossing the time stream, making it a better place." said Paradox

"And how does that pay?" asked Kevin

"At the moment, not even in job satisfaction." Then they were teleported to a room with a chalkboard. Ben, Star, Kevin and Gwen were shocked for a second. "You see I recently discovered that some kind of extradimensional creature is going to wreak havoc across the universe."

"So? Way you talk, you take on monsters like this all the time." said Ben

"Yeah, why is this one so bad?" asked Star

"Because unlike the thousands of foes I faced before, this extradimensional creature came into our plane of reality the moment my experiment went awry." said Paradox

"Oh. So, just to be clear, it's your fault." said Kevin

"This creature hasn't been lurking around for 50 years. We would know about it." said Gwen

"Time is like a river. It moves, flows, and bends. 50 years ago, I accidentally set of a depth charge in that river. The creature I released was blast 50 years through time to your present, doing this to your future." said Paradox as he was drawing on the chalkboard.

"But all it's doing is messing up an old army base. Why is that a problem at all? Why not just leave it alone?"

"That's a better question for the man on the moon."

"What?" asked Star

"Who's the man on the moon?" asked Ben

"I am." said Paradox as the were teleported to the moon.

"We're on the moon."

"No, we're on the moon in your distant future."

"What?! How are we not suffocating?" asked Kevin

"Good question. Not remotely the point, though. Imagine what the earth would look like in 200 years, say, with that time monster wandering all over it, aging everything that crossed its path to dust. For those of you with no imagination, the Earth is up there."

They looked up and saw the planet was all brown and black. "You brought us to the worst possible version of the future." said Ben

"No. should I fail to stop that creature, this is your best possible future. Not a pretty sight, is it?" Then Paradox noticed someone. "What are you doing here?"

"I'm allowing myself to feel the full impact of my failure." said the man that looked liked Paradox

"Okay. Who's he?" asked Kevin

"He's a parallel Paradox." said Ben

"Young Ben has an innate sense of transtemporal metaphysics, which will serve him well in his future - or should I say "past."" said the parallel Paradox

"And I drive good, too."

"We can breathe on the moon in the future, but you can't fix my car?" asked Kevin

"What should I do?" asked Paradox

"Well, obviously not what I did. But whatever you do, you better do it quickly. Time is running out." said the parallel Paradox

Then the four returned to Los Soledad in the present.

"Why come back here? Why don't we travel back in time and stop the time experiment from ever happening?" asked Gwen

"Isn't just like an energy being to think outside temporal conventions?" said Paradox

"I'm not an energy -"

"The experiment that releases the creature also unsticks me in time, and that must happen because in all modesty..."

"You saved the world dozens of times." said Ben

"Hundreds, actually. In fact, on one occasion, you, me and Star work together to save the entire univ- never mind. It should be here any -" Then there was a loud nose. "You can set your watch by it."

Ben activated the omnitrix and hit it. "Jetray!" Ben flew up as the a building fell down. Then fired a laser at the creature but it did nothing. Paradox took out some gumball and thru them and the creature stopped. Ben landed. "It hit it? Doesn't everything age into oblivion as soon as they touch it?

"Gumballs last a really long time. Look under your desk at school. Now get back!"

Ben flew up into the air and Star was about to attack it when Paradox jumped in the way. "Won't that thing turn you into dust!" said Star

"I exist outside of time. Well, I can still feel the eons passing."

Ben flew back down and turned back to normal. "Paradox, take us back to the accident - now." said Ben

"But I told you!"

"Just do it!"

Then they were taken back 50 years.

"Star, Kevin, Gwen - the lab. Quick!" said Ben as Star, Kevin and Gwen ran of to the lab. "You just keep that thing occupied." Then Ben ran off.

"K-keep it occupied? I'm a time-traveling hero. I don't keep things occupied." said Paradox

Ben, Star, Kevin and Gwen sneaked into the lab.

"Sure this thing is gonna work? Your time machine has cost the U.S. Government a pretty penny, doctor." said the general

"As to cost, I think the alleviation of untold human suffering throughout history is ample justification, General." said the past Paradox

"Why would it use the phone?" asked Ben

"What?" asked Star

"The creature. It tried to use the pay phone. Then it went to the police station, then the dorms. It didn't act like some unfathomable trasndimensional creature. It did everything a normal person would do..."

"If they suddenly found themselves in an abandoned military base." said Gwen

The time machine started to turn on. They noticed the lab assistant bumped back into something and something started to explode.

"Look there. The assistant." said Ben

Then things started to get sucked in including Paradox. The assistant was about to then Ben tried to reach for him.

"Ben, don't. You'll get sucked in along with him!" said Star

"I need to put on a little weight." said Ben as he activated the omnitrix and hit it. "Humongousaur!" Ben then grabbed the assistant befor he was sent into the vortex. "Trust me. This beats the alternative." Then Ben pulled him in. Then Star and Gwen fired blast to destroy the machine.

With Paradox.

Paradox was hanging on to the creature as it was running around. Then it stopped and he was holding he assistant. "Hugo! Of course. If it were a snack, it would've bit me." said Paradox. Then Ben, Star, Kevin and Gwen meet up with him. "But don't look so smug. I would've figured it out eventually."

"You had 100,000 years!" said Ben as they were transported back to there time.

"Well, I have to admit it. I'm impressed. All those centuries trapped in the Event Horizon, and it never occurred to me that the accident wasn't my fault. You're much smarter than you were when I met you later."

"Thanks.. I guess."

"So, what happened to your assistant?" asked Star

"I lived my life." said Hugo as he walked up to them.

"Hugo! How are you?" said Paradox as he walked up to him and shuck his hand.

"Well, you look the same, and I haven't seen you in 50 years."

"Well, I haven't Seen you in 100,000 years, but you don't look that bad. How was your life?"

"Good, a good life. But I'm - I'm sorry about the experiment. I ruined everything. I never got to time-travel."

"Would you still like to?"

"Yes. I'm not afraid anymore."

"Glad to hear it. How about I give you a behind-the-scenes look at eternity?" Paradox then made a portal that him and Hugo went into.

"At lest he's got company now." said Gwen

"Oh, and thanks for stranding us out here in the middle of nowhere!" said Kevin

Not really I still have the dimensional scissors. So we can be home soon." said Star but as they walked around the corner. They saw Kevin's car fixed.

"Oh, ho, ho, ho! Stoked!" said Kevin as he ran to the car.

"It looks like new." said Gwen

"It doesn't just look like new. It is new. It's factory-new from 30 years ago. Paradox, I take back everything I was about to say about you."

Ben then noticed a note on the car and picked it up and started to read it out loud. "Kevin, try to keep in mind that is this car comes into contact with anything else from 1976, it will explode like antimatter. Enjoy! Paradox."

"He's kidding, right? That's some kind of time-travel joke, right?" asked Kevin as he drove them away. "Isn't it... guys?"

But no one said a thing.