Since there are 2 Ash and Dawn, Im gonna put the older selves a nickname.
F/Ash- Future Ash
F/Dawn- Future Dawn.
At the camp, the heroes with their Pokémon are standing face-to face with the strangers that they were helping, who turns out they were Dawn and Ash from the future.
"W-What did you just say?" Brock couldn't believe what he just heard.
"Us… from 10 years in the future?" Dawn couldn't believe what she just said.
"That's how it is." F/Dawn said flatly.
"What do you mean "That's how it is"? You can't be us from the future!"
"Pika!" Ash and Pikachu couldn't believe it either. F/Ash's eyes were spaced out when he saw Ash's Pikachu, but he shook himself off of it.
"But we are you."
"And we weren't supposed to be here in the first place. And it's your entire fault Ash!" F/Dawn said while trying to stand up, but her legs felt like jelly and fell down.
"W-What did I do?" Ash said pointing himself.
"Not you! The other you! Uggh, my legs." F/Dawn rubbed her legs to try to soften the pain.
"Well, whoever you guys are, we can't just leave you like this, so try not to do anything while we… clean up the mess." Brock flatly said and grabbed a pot and put it over the broken table to make his stew.
"Wait, we have to clean up?" Ash's jaw dropped when Brock was serious on the cleaning.
"B-But the whole place's a mess!" Dawn resented the idea to clean up the battlefield the future them used.
"No complaining. The older Ash is too hurt and the older you is still healing, so the best thing to do is clean up and make dinner so that they could get better." Brock said with a serious face.
"…Ok." Ash and Dawn knew that Brock was right, and they couldn't do anything when he gets serious like that. Dawn went to get the water for F/Ash, while Ash went to pick up the firewood he forgot to get.
When they finally cleaned up most of the camp, the night came by, so they decided to have dinner by having Brock's stew.
But while Ash, Dawn and Brock were enjoying dinner around the campfire, there was an uncomfortable silence between the two grown-ups that were eating the stew away from the campfire.
Instead of eating her stew, F/Dawn's eyes were like daggers while staring with murderess intent at F/Ash, which made F/Ash more uncomfortable.
"Oh man, I never thought that I would be having dinner with someone who's trying to get me! I got to get out of here." F/Ash started to sweat out of nervousness when he never knows when F/Dawn's gonna pull out a gun outta nowhere and shoot him.
F/Ash ate his stew in a hurry so that he could get away from F/Dawn. He ate as fast as he can and left the bowl empty with some stew left over and dropped his spoon into the bowl to make a tink sound, making the younger gang to notice him standing up.
"Thank you for the food." F/Ash put his hands together for grace and stood up with his hand on the back of his head.
"Well since I finished dinner, I should go back to where I came fr-" but before he could finish, he sensed something behind him and motioned himself to turn around.
He found a purple Pokémon with black and white stripe on his belly with yellow life-less eyes and sacs which looks like it's extending it each time he breathes with an arm raised at F/Ash, glowing with a purple color.
"And where do you think you're going?" Brock asks as he is still eating his stew calmly while everyone else is looking at the Croagunk.
"I-I-I was just going to get back to the forest." F/Ash stammered while answering to Brock and looking at the Croagunk with his poison jab on him like clothing.
"Really? From what I see, you've got only two choices."
"W-Which are?" F/Ash moved back a bit since the Croagunk was making him go back to where he was sitting.
"One: You stay here and rest till all your injuries are healed, or Two: I'll ask Croagunk here to use a poison jab so hard, that you won't move till next week. If I were you, I'd pick the first." F/Ash knew that the choices were unavoidable, so he gave up all hope and returned to his seat.
"Yes sir."
"Wow Brock, you were pretty amazing even then, huh?" Thought F/Dawn when she saw how relaxed Brock handled the situation and made Ash and Dawn's jaws drop.
"Whoa, how'd you do that, Brock?" asked Dawn, immediately looking at Brock after what happened.
"Well, our Ash is pretty simple to persuade, but since we're dealing with his future self, I thought that forcing him would be a good choice."
"Wow, how'd you know that?
"I just had a hunch." Brock got back to eating his stew as the atmosphere around turned into an eerie silence, which made Ash speak up what he had in mind.
"So, if you're not supposed to be here, why are you here anyway?" Ash asked the future selves, making them looked at Ash with widened eyes.
"Oh yeah, I'm wondering about that too." Dawn said, leaving her empty bowl to the ground since she's finished.
Yeah, tell us." Brock joined in.
F/Ash and F/Dawn looked at each other knowing what to say, but F/Ash closed his eyes and turned around to the opposite of her and left the camp, leaving F/Dawn to tell herself. Dawn saw this and thought why F/Ash left.
"Hey, where are you going?" asked Brock, surprised of what just happened didn't budge him.
"Don't worry, I won't escape. I'm just gonna cool off." said F/Ash walking into the darkness.
"Well, just in case, Croagunk, follow him." Brock commanded Croagunk to keep an eye on F/Ash and followed him into the darkness.
"Forget about him. We're not supposed to talk about this but I guess I'm have to tell you guys for the hospitality." F/Dawn stood up with a bit of strength to keep her standing to tell them seriously.
"In the future, about some years later, I joined the Anti-Carnage of Evil police force, the ACE for short; to stop anything evil or vile that happens."
"Really?" asked Dawn, completely surprised she going to do that in the future.
"Wow Dawn, you joined a police force?" said Ash with his Pikachu by his side smiling at her success, while Brock also did the same.
"I never expected that to happen." said Dawn with a cheerful face.
"So, what about me? What's gonna happen to me?" asked Ash.
"... I don't know how to say this…" F/Dawn's eyes look down after hearing that, surprising the gang.
"W-What's gonna happen to me?" Ash felt hesitant before saying, but wanted to know.
"… In the future, you will become a nationwide, top first most-wanted criminal all over the regions." When those words left her lips, the camp went into a complete silence, making everyone's eyes widened except F/dawn's.
"Y-You're joking, right? I mean this is Ash we're talking about, right?" Dawn put up a fake smile, pretending what F/Dawn said to be a joke, but F/Dawn turned her head down, making the statement true.
"W-W-Why? Why would he do something like that?"
"...I gave too much information. I'm going to bed." Wanting to stop the upcoming 20 questions, she gave up telling and went back to her cut-up sleeping bag and closed her eyes to sleep.
"But wai-"
"Good Night!" Before Ash could say more, F/Dawn startled them by shutting them up.
"Damn." Ash was annoyed since F/Dawn refused to tell more.
"Guess we been too much in their faces about their private business." said the breeder.
"But that's our business too right?" said Ash, which made Brock nod in agreement.
"True, but whatever happening to them, or you guys, is still their own business. We have no right to keep pestering them if they don't want to." Brock said.
"…Alright." Without a fight, Ash gave up and went to a log to sleep on since F/Dawn was using his.
"Dawn, do you want to sleep too?" asked Brock.
"Huh? Oh, OK." Dawn staggered before answering and stretch her limbs when she stood up then went to her tent for sleep, leaving Brock to his thoughts.
"Man, each time I hang out with Ash, bunch of weird stuff happens." Brock mumbled to himself while picking up the dishes they left and went to sleep.
It was late at night as the campfire was still lit and everyone was asleep…well, except for Ash as one of his eyes opened up and stood up. He quietly sneak to get out of the camp without anyone waking up, especially Pikachu since he has highly tuned hearing.
Ash went to the darkness of the woods to try and find his older self so that he can know why he became a criminal.
He looked around the forest to find him, but the darkness made it difficult for Ash as well as the winds was going stronger by the minute. Luckily he found a silhouette near the pond Dawn used to get the water as it turned out the silhouette was F/Ash and a sleeping Croagunk.
F/Ash stared into the pond with such gazing eyes that looked compelling. As he stared, he failed to notice that his younger self was standing right behind him.
"Yo." Ash said, startling his older self with a yelp.
"Wah! Don't scare me like that." F/Ash sighed and holds onto his chest to calm himself down.
"Sorry, didn't mean to." F/Ash sits back down on the grass to stare at the pond again. Ash joined in beside him as he stared into the pond.
Ash was amazed at how the pond was at night. The full moon was on as it was reflected in the pond to give it such a dazzling sight, one that an artist dreamed of drawing.
"Woah, what a nice view!" Ash commented how the pond was while F/Ash plainly ignored him. Ash felt uncomfortable as they enter into an awkward silence.
"So…" he breaks the silence. "Can I ask something?" Ash looks at his older self and asks him a question.
"What is it?" F/Ash said, still looking at the pond.
"Well… I just wanted to know something." Ash said while rubbing the back of his head. It can't be that hard to talk to yourself from the future, right?
"Know what?
"Is it true… that you're a criminal?" Ash looked at F/Ash, hoping he would say no or "you're dead wrong".
"…So, she told you?" Ash's eyes widened when he nonchalantly admitted that she was right.
"S-so it's true? I'm gonna be a criminal?" Ash looked at F/Ash again, but this time with a depressed look on his face.
"…Yeah."
"But why? And this time I wanna know!" Ash stood up and pointed his finger at F/Ash warning him to tell the truth.
"It's… complicated."
"But I'm you! You should tell me anyway right?" Ash made a point while asking F/Ash to tell. He's gonna start using this method for a while.
"Even if you're me, I can't just tell anyone something so important, especially you of all people."
"How come?"
"I just don't want to get into more trouble than ever."
"What?"
Back at the camp, In her tent, Dawn was sleeping in her sleeping bag, but something was keeping her from sleeping as her eyelids popped up and motioned herself to get up from the sleeping bag.
"Oh man, I can't sleep after what just happened." Dawn got out of her sleeping tent and noticed F/Dawn sitting on the stump and looking at the stars. Dawn walked to the stump to talk more about the not-so-looking-forward future.
"Hey." Dawn said.
"You know, kids should be sleeping this late." F/Dawn answered while still looking at the sky.
"Oh, I definitely don't want to hear that from you of all people." Dawn giggled to try and lighten things up with F/Dawn, but F/Dawn was not smiling.
"Uhh, anyways, can I ask something before I go back to sleep?" Wanting to evade a bad atmosphere, she asks while sitting down on the grass next to F/Dawn.
"What?" F/Dawn said, now looking at Dawn.
"Don't worry, it's not about Ash." Though that was Dawn only wanted to talk about, but with the bad look on F/Dawn's face, she couldn't do it.
"Then what is then?"
"Ummm… how were you guys able to get here?" Dawn was trying to make conversation with her but was drawing a blank, so another question popped into her head.
"Well, the only explanation for now is time traveling."
"So, in the future, someone invented a time machine?" Dawn guessed.
"Well, sort of."
Back at the pond.
"So, how is it then? Ash said to F/Ash
"About some years from now, the assistant aiding a professor in the region of Orre, found the legendary Pokémon Celebi. The trainer managed to catch it and delivered Celebi to the professor."
"Wow really?" Ash was amazed how the future was looking.
"Yep."
Back at the camp.
"What's a Celebi anyway?"
"Celebi is a legendary Pokémon that's able to time-travel to the past and future. The professor in Orre was trying to know how Celebi was able to do it.
"The assistant who caught it pleaded to help the professor with his research, and Celebi makes their wishes come true. The Celebi produced very powerful crystals that, if used correctly, will make him time travel at whatever time he wishes."
"Wow!'
"However, the crystals can only be used while it's still has power or if it's near to a Celebi. If it ran out, the person who carries it becomes trapped in the time he went forever."
"R-Really?"
"That's right. The professor named the crystals "Celestals" and made a huge breakthrough in society. The government was even interested with the celestals. They decided to sell them to the world for the price that only the millionaires can get."
"But they were afraid what would happen if they were used in the wrong hands, so the professor and the government made a new law called the "C-Law" that everyone in the world should follow."
Back at the pond
"What's the C-Law?" Ash asked to F/Ash.
"The C-Law is for anyone who's got a hold of the celestals other than the professor and the government. It states that if anyone was using the celestals, they should follow important rules.
1: You can never do anything to the past or the future.
2: You can't say anything that can alter the future.
And 3: You must alert the authorities before doing any time traveling.
Back at the camp
"Whoa, so what happens if you break'em?" asked Dawn.
"If the authorities find you breaking them, you get dragged back to your own time and go to jail for a life-sentence. It's not like murder, but it's still pretty bad."
"Why's that?"
"The government and the professor were even more afraid that by using the celestals, it can break the fabric of the space-time continuum, meaning it can kill the legendary Pokémon Dialga and Palkia who controls it.
"No way! So why used them at all?"
"Actually I don't like the idea either, but there are a lot of people that would kill just to have it. They even try to change the future so that they can rule the world. The ACE was made so that it'll be prevented. "
"It's that why yo- I mean I joined the ACE?"
"Well, I joined the ACE for an entirely different reason."
"What is it?" asks Dawn, hoping she would answer, but F/Dawn turned her head down.
"I don't want to say. I'm already breaking the rules just by talking to you so much."
"Oh…" Dawn wanted to know if it's been Ash, but couldn't know.
"Sorry."
"That's ok; you're only following the rules." Dawn stood up and yawned a big yawn and looked at F/Dawn. "I should go back to sleep. Maybe you should too." Dawn left F/Dawn and went back to her tent, leaving F/Dawn back to her thoughts.
Back at the pond
"It's that why you're not telling?" asked Ash to F/Ash.
"Yep, so can you give me a break and just cool it?" F/Ash stood up after talking and yawned while stretching his arms wide, turned around and goes into the forest.
"I'm goin' to sleep." F/Ash said but before he goes to the darkness, Ash turned around and lifts his arm toward him with his hand open.
"Wait, just one more question." F/Ash turned around to face his younger self.
"What now?"
"Where's Pikachu?" After Ash said it, F/Ash's eyes widened and turned his head down.
"Ain't he in camp sleeping?"
"I mean yours, w-well you know what I'm talking about."
"…"
Instead of answering to Ash, he turns around and goes into the darkness, leaving Ash to sit back and watch the moonlit pond.
"Pikachu… what's gonna happen to you?"