In an abandoned Soviet cosmodrome, four men are fighting for their lives against something that shouldn't exist. One of these men was working on a strange looking machine as the others fought off hordes of the undead, cursing occasionally in German when something went wrong.
"You almost finished, Doc?" One of the men, a Russian, shouted, stabbing a zombie in the face with a sickle.
"Ja, five more minutes" The man replied testily. "Nope, NOW!" Yelled an American as he ran into the machine and grabbed the doctor.
"Guys, come on!" He yelled as he desperately shot into the horde.
"Nein, Dempshey, Zhe machine is not ready yet!" The doctor shouted as he struggled against the larger man's grip. The two other men ran into the teleporter just as the button was pressed, engulfing them in lightning which killed all of the zombies around them as they disappeared.
In another dimension entirely, everything seemed perfect. But, as we all know, things aren't always what they seem.
"Princess Celestia!"
A light blue Unicorn with a black mane and a Cutie Mark of a spark burst into the throne room, clearly distressed about something.
"Princess Celestia!"
The aforementioned Princess of the Sun sighed as she dove into the depths of her memory, attempting the retrieve the pony's name.
"Yes, Brightspark, what is it?"
"There is a massive influx of unknown magic coming into Equestria from an unknown source!"
He babbled, close to histrionics.
"What does that mean, Brightspark? You have to focus." The princess was slightly worried, not that she let anypony see that, of course. She had to be seen as calm and collected.
"As far as I can tell, it means something is coming. Something from a different dimension."
said the now-calmed Brightspark.
"We should prepare ourselves."
Discord sighed. It was so very boring in Canterlot Castle. He briefly considered tricking some of the maids before sensing... something. Something evil. Curious, he took a closer look. Humans? Here? Interesting...
Well, that was chapter 1... yay? Tell me if you guys want anything added or whatnot, as I'm probably gonna run out of ideas after a while.