Equestria meets R.J. Macready

In the Everfree forest an mysterious organism is seen assimilating an bird and flying away, its eyes morphing omniously. With a bearded man watching with disgust.

The bearded man said in dismay "You HAVE GOT TO BE FUCKING KIDDING ME!"

Elsewhere, The evil clones of the heroic Elements of Harmony (and Spike as Chrysalis took one of his scales) were seen with their creator Chrysalis and were chattering as to how to deal with the Elements of Harmony and had trekked into the forest to search for the Tree of Harmony. While this happened the scene shifts with the girls and Starlight and Spike walking with them.

Twilight said "Well the retreat looks to be in order, get ready to have fun!"

"You mean fun fun or pretending fun?" Rainbow Dash replied

"Both, we've been busy teaching we hardly had a chance to hang out with each other and I managed to schedule to friendship activities as well!" Twilight said

Spike came in and asked "Is it alright if I come to?, its just been a little too much for me"

Twilight debated and although a bit hesitant said "OK Spike, you've worked hard to and you deserve some break."

And eventually they began to begin their retreat into the forest to be near the Tree of Harmony. Meanwhile, the man in the beard, known as R.J. MacReady was seen loading up his weapons, consisting of a flamethrower, pistol, Shotgun and Sniper Rifle.

MacReady said with a look of determination "Time to send that Thing to hell, forever this time!"

And with that MacReady began to search in the forest for any unusual behaviour. Meanwhile with the Mean six, they had unfortunately accidentally separated during the search for the tree, Mean Fluttershy bullied a bird, causing one to curse at the real Fluttershy (and one was really the Thing, judging by its eyes morphing and the way it was facing the other bird), Evil Pinkie made fun of how the trip was boring and made Twilight think it was the the real Pinkie and Evil Rarity stole a bunch of unnecessary things and hurt Starlight's feelings and Evil Spike ended up vulgarly insulting each of the Main six and Starlight making them think the real Spike did it and accuse him, with Spike in turn angrily accusing the girls of trying to kill him (But it was the evil ones in actuality). Eventually as the real girls, Spike and Starlight met up and reconciled their friendship, The evil clones of the girls and Spike trashed the campsite, but as they did so, Evil Rarity noticed something move and went to check it out with Evil Applejack.

"What is that?" Evil Rarity said to the strange muck, unaware its the Thing

"I can tell you, for five bits" Evil Applejack lied

As they argued, the Thing jumped out and immediately devoured both of them and took the form of Rarity, but instead its coat was much less darkened and had more clean hair and it gave an look of satisfaction before going to track the Evil versions of Pinkie, Rainbow Dash, Twilight, Spike, Fluttershy and Chrysalis. During its trek, it saw the girls and Spike and decided to not consume them, seeing as to how they proved to be of use of it, and left, walking through the woods as a small bird, and eventually reached the tree where it witnessed Chrysalis fighting the Evil Twilight and was knocked out, but as it looked, a loud voice was heard.

"HEY YOU UGLY MOTHERFUCKER!!" An all too familiar voice shouted out

The Thing turned and saw MacReady fire his shotgun repeatedly at it, and the evil clones stopped their fight and gave looks of disgust and horror at the two adversaries engaging in their final showdown.

"What...is..THAT?!" Evil Twilight said in disgust about The Thing.

The Thing and MacReady fought each other with blood lust and hate, with The Thing forming into Evil Rarity and looking similar to the Palmer-Thing that MacReady killed in Outpost 31 and MacReady using his flamethrower and shotgun to suppress the creature and keep it in a weaker state. As they fought, the clones got an idea and Evil Twilight said with a smirk.

"Hey, you wanna make those two our new playmates?"

The rest agreed in their own ways, Evil Rainbow being an uncaring jerk, Evil Fluttershy with sadistic intent, Evil Spike without any level of care or trust and Evil Pinkie with a lack of appreciation. As Evil Twilight said this MacReady got an idea (yet knew he would regret it) and said to the creature with a taunting manner.

"Hey motherfucker!, you want me?!, Come get it!!" MacReady Shouted

And the moment The Thing lunged at R.J., he dodged and the creature instead had lunged at the Mean Six, with Evil Twilight using her magic to control both of them and both screamed out in pain as the evil clones laughed at this, but the moment they were doing the spell, The Thing broke free and slashed at each of them as MacReady watched. Soon, the tree began to glow and drain the Evil clones into nothing but tree logs with Evil Twilight saying before they died.

"Imbeciles, you ruined everything!" Evil Twilight said while melting.

The same thing had began to happen to The Thing, but instead of melting it into nothing, the tree used its magic to completely blow apart the evil creature, spraying its blood everywhere.

"Fuck...it's over...I hope" R.J. said with a tone of hope and wonder.

MacReady decided to leave the area and wondered how he was supposed to get home, but while doing so he saw the (Real) Main 6 and Spike and wondered in shock how they were still alive, but while doing so saw an all too familiar creature closing in on them. Fluttershy immediately saw the deformed creature and screamed in horror so loud the others saw the creature and gave looks of horror.

"WHAT IS THAT THING?!" Rainbow Dash said with disgust and horror

"I think I'm gonna...bleeeeeeeeh" Spike said and vomited at the creatures grotesque appearance.

Twilight, with quick thinking, used her magic to subdue the creature and the rest attacked, but they were met with futility as the creature had extensive resilience from either Twilight and Starlight's magic or the physical attacks from Rainbow and Applejack, as it closed in, Spike breathed his signature green fire, with the flames being too much for the creature as it died and melted. This caused the girls to give sick looks and probably vomit out their lunch at the dead Thing creature.

Starlight asked with fright "What...was that thing?!"

Twilight replied in horror "I don't know but...wait do you hear that?"

The girls heard more sound as it got louder and saw the same creature, but with a dog head

The group once again fought, but when Twilight cut off its two large claws, they formed into large tentacles that held the girls and Spike, even covering Spikes mouth, but as this happened, Spike breathed fire on the creature and freed the girls, but while doing the creature grabbed him and covered his mouth before he could finish off the creature. Just as the creature could kill him, MacReady appeared and fired his shotgun at the creature, subduing it and finished it off with his flamethrower, killing it for good.

After he killed the creature, the girls turned to face him with shock and horror

"Thank you sir, but...who are you?" Twilight said