It was a clear and peaceful day in Canterlot High's dimension. The mane 7 were having a picnic at the forest, trying to enjoy these days off before starting their last high school year, in the calm of the moment, Sunset throws up a question:

“We've been through quite a lot of things this year, haven't we?”

“More than I'd like to admit” -replies Twilight.

“The incident with Wallflower, the summer vacations, the Everfree camp, and the list goes on and on” -adds Rainbow Dash.

“Y'know, I'm glad that we managed to get through all of that and save the day, who would've thought what would happen if all those catastrophes weren't stopped.”- exclaimed Pinkie Pie.

“Well, fortunately, no Equestrian threat has showed up and if you ask me, I want to keep it that way.” — says Applejack

“I just hope you haven't jinxed it AJ, it is such a beautiful day that we're having” -says Rarity with an ironical expression.

Everyone starts laughing by Rarity's comment, but then, an extremely loud noise is heard from above, the girls look up to the sky and see what they seemed like a damaged spaceship crashing in a nearby zone in the forest. The girls watch shocked while the mysterious spacecraft descents abruptly into the ground.

"The birds are screaming, that ship is totally unknown for them" - states Fluttershy.

"¡Wow!, Rarity was right, you jinxed it AJ" -says Rainbow Dash.

"We don't have time to waste, if there's something evil in that ship, we're preventing it from going any further than here." -claims Twilight.

"Or maybe there's someone injured that needs our help" -replies Sunset.
The group headed to the crash zone, where they found a mysterious spaceship lying on a crater quite big, but they managed to see an acronym in one of the ship's engine.

"UNSC? What does that mean?" -Asks Applejack

“I don't know, but we must inspect the whole thing to know it's safe around it” – answers Sunset

While inspecting the ship, Rarity places herself towards the rear door of the ship, a sound of something being released starts playing, but Rarity's curiosity makes her stand still before the door.

"Girls, what's that sound?" -asks Rarity with a worrying tone.

In a matter of seconds, the door blows away towards Rarity's position, fortunately, she managed to put up a shield from her powers before something bad happened.

"Rarity! You ok?" -asks Applejack

"I'm fine, but.." -says Rarity before being interrupted.

"Put your hands up!!" -claims a deep voice from within the ship.

A 7 feet (2.13 m) green armored soldier comes up from the smoke that the blast left, alongside his partners: Another man with a blue armor and two women, one of them with a gray armor and the other one with a brownish armor. All of them were peculiarly tall and seemed people not to mess with, plus the fact that all of them had a three-digit number in their chest.

Quickly, they point out their guns to the mane 7, the woman with gray armor says:

"Chief, we have to find the kid before something bad happens"

"I agree, but first we have to confirm if these girls aren't a threat. Fred (the man with blue armor) cover me while I inspect them, Linda (the brownish armored woman) and Kelly (the gray armored woman) check the area for any suspicious activity." -Claimed the Master Chief (green armored guy) with a serious and neutral voice.

The Master Chief proceeds with caution towards the girls while he interrogates them.

"How did you find our ship?" Asks Master Chief while pointing his assault rifle to the girls, he's not messing around. Twilight then answers Chief's question with nervousness, after all, he's the one with the gun.

"We were having a picnic nearby, and we heard the noise of your ship above us. We saw it crash, so we decided to come and see if there would be someone who needs help, but it appears that wasn't necessary." -Replied Twilight

"Hold a sec, we should be the ones makin' questions, you are the strangers that ended up crashing here." -Claims Applejack.

The girls start looking at each other, they have a plan and didn't hesitate to do it, it's their home, the one being invaded by these strangers.

"Do it." -Says Sunset with determination, encouraging her friends to act.

In a brief moment, Pinkie creates a smoke/candy screen with her powers, Rainbow Dash disarms Master Chief with her super speed. AJ kicks him in the chest to blow him away, but the super strength wasn't so amusing this time, Master Chief just moved a few meters backwards. He draws a handgun, but before being able to shoot it, Twilight lifts him in the air and Rarity creates a diamond cage around him.

"That was quick." -says Master Chief, who is a bit amused about the girls' powers because it's not something he has seen very often on his missions across the Multiverse.

"Now answer us, who are you and why are you here?" -Asks Rainbow Dash with determination and a triumphant pose.

"I would've, but you're forgetting something" -Answers Master Chief with a calmed voice.

"What is it?.." -asks Sunset with determination, she's not going to tolerate that any possible threat to wander around her home.

Then, she hears the hammering of a gun, but it's right at her head, then everyone looks in the direction of the sound and then an invisible figure starts showing up. It was Fred who camouflaged himself to ambush them once the assault was finished.

"I'm offended that you forgot about me" -claims Fred with a mocking voice.

"How did y-? -ask AJ before being interrupted by Fred

"If you want to preserve your friend's life, I suggest you to release him before my finger pulls the trigger, and trust me, none of us wants a nonsense conflict."

"Girls, we don't have other option, it's Sunset we're talking about" -says Fluttershy

"Listen to the shy one, she seems to comprehend the situation much better than you" -says Fred

After a few seconds of thinking, Twilight gives the signal to release Master Chief, once he's in the ground, Fred stops pointing his gun to Sunset's head and takes distance, to start pointing towards the girls.

"Alright, everyone, let's calm down. We all have questions that need an answer, but now my team and I have something to do, and we cannot waste time any longer. So let us go, we do what we came here for and then leave peacefully."-says Master Chief to the group.

"What makes you think we're going to let you go when we don't even know who you are?" -asks AJ in an angry tone.

"Chief, they're not joking around, and we don't know how much time we have left so take a choice" -claims Fred to Master Chief.

After a few moments, Kelly and Linda return to the group.

"Chief, the area is clear, there's no one in a radius of approximately 2 km." -states Linda

"Have you solved the situation with these kids?" -asks Kelly to Master Chief

"No, I'm about to." -claims Chief

Then, Master Chief keeps his weapons down and tells the rest of his team to do the same, after that, he proceeds says.

"Listen kids, I'm going to tell you the truth, if you don't believe me that's your problem, but you have to let us leave. We're soldiers from another universe that have been fighting against a multiversal threat, and we ended up in this world because we're looking for someone that might help us to figure out something about our next target."

"Who are you looking for?" -Asks Twilight, concerned about what can this people do to anyone who lives in her world.

"What make you think I'd tell you?" -Replies Chief with a serious voice.

The girls raise their guard, before something bad happens a noise starts playing, it is something like a phone ringing, but it comes from Master Chief's helmet, he takes the call.

"Chief! Is everything alright? I got your Pelican's distress signal and..." Said the voice, it sounded a bit concerned about the Blue Team's welfare, Chief then replies with a serious voice, interrupting the person talking in his head.

"We're fine kid, we're having a setback, we'll be there in 10 minutes once we're done here." -says Chief to the voice in his helmet

"Setback? What kind of setback?" -Asks the voice inside Chief's helmet

"The one that is making Chief regret coming here." -says a blue AI that appears in Chief's helmet

"Cortana, this isn't time for your jokes, have a plan?" -Asks Chief.

"Yeah, actually I do, hey kid look at this" – then Cortana shows the person in the call a live transmission of what Chief is seeing right now, the mane 7 being surrounded by Chief's team.

"Chief, release them, they're my friends."- says the voice with a desperate tone.

"Really, so these are the girls with superpowers you mentioned? If so, they're beginning to annoy me."- asks Chief with an angry voice, despite having some information regarding the Mane 7, he's proving if that information is true.

"Long story, but let me talk to them." -says the voice

"Fine, but be quick." -Chief projects the image of the incoming call and with the speakers of his suit, everyone hears what the person has to say.

"Hey girls, Flash here... I know this is a bit all out of sudden, but I'll explain to you later. Just to let you know, they're good people who you can trust too, they'll take you to the meeting point where your questions will be answered, Flash out."

After a silence from both groups, Master Chief says.

"Flash told me about you, but I never expected... well, that those girls with superpowers would be the first ones to track us down. We have to move, time might be against us... Let us guide you, if you please."

"You crazy, aren't you? What makes you think we'll follow you?" Asks Applejack outraged as she and her friends stick together, Master Chief then sighs and says. "Your world is in great danger, whether you want to believe us or not, it's up to you. But, if you trust Flash Sentry, you'd know he ain't liying, and so am I." Kelly then attaches her shotgun to her back and says.

"Plus, no offense girls, but there are dangerous people chasing us and you won't be a match for them. So for your own sake... you'd be wise to listen." Kelly makes a pause as she begins to take off her helmet, showing her face as she's tried to be stopped by Master Chief, but she quickly dodges him and says.

"Too slow, John, haha!" Kelly then approaches the girls and says with a friendly voice. "The name's Kelly! John is the green one, he's a bit grumpy but he's a good guy. Fred is the blue one, he might seem serious, but he's funny to hang out with, and there's Linda, the one with brown armor. She's serious most of the time, but you get used to her."

"Why are you telling us this?" Asks a confused Twilight as she adjusts her glasses, Kelly then smiles and says. "Because you're friends of Flash! He's like my little brother, so whoever he thinks is a friend, it can be a friend of mine too!" Said Kelly with excitement as she extends her hand towards Sunset, looking for a handshake, the glow of her eyes shows honesty, for the moment, it's safe to trust her word, Sunset extends her hand and shakes Kelly's as she says. "Glad to hear that, Kelly!"

"Awesome! Now, we relally need to go so... if you don't want to die, well... you can come with us. All your doubts will be answered there." Said Kelly as she indicates the path that she and the team are going to take, Master Chief only sighs, as he knew he wouldn't be able to stop Kelly once she felt like making new friends.

After a time of reflection, the mane 7 choose to trust Flash and Kelly's word and went along Master Chief's team to the meeting point, from this day on, nothing would be the same for none of them.

END OF CHAPTER

Author's Note

He y'all, this is a story I've been willing to express quite a lot of time ago, but I'll take my time to give it a proper structure. I still don't know how many chapters would there be, but this is just the beginning of something great, at least for me.

Hope y'all like this prologue, stay tuned and see ya'next time.