Everyone seems to assume that not everything belongs in existence, and that there can be only one world. But what if, there are infinite worlds; you just have to open your mind to discover them…

"Hey Applejack," Twilight called over her shoulder.

"What is it Sugar Cube?" Applejack answered as she bucked apples from one of the many trees at Sweet Apple Acres

"Do you need me to help run any baskets to the barn yet?" Twilight answered.

The whole pony gang was helping Applejack out with her apple bucking for the 3rd year in a row.

"Oh, I would love to help Applejack, but all these trees seem so, unclean…" Rarity said with a disgusted look on her face. "Is there anything else that perhaps I could do for you?"

"Uh yeah Rarity, could you start sorting the apples at the barn would yah?" Applejack replied. "Oh and Twilight, here," Applejack nudged a full barrel toward Twilight. "You can go with Rarity to the barn,"

Twilight smiled, "Glad we could help AJ!" Twilight then winked, as she and Rarity headed off to the barn.

"Yeah Applejack," Pinkie Pie said. "I love making all the delicious apples come down from the trees!" She bounced into a tree, and took a big bite of the biggest apple. "MMMMM! This is so yummy!" She said with a mouth full of apple. "And Fun!" She cheered, then jumped out of the tree and bounced out of sight.

Applejack chuckled to herself, "Pinkie Pie…" She looked around and smiled a tired smile. "Another successful apple bucking season," "Whoowee, it's sure dandy to have my friends,"

Suddenly, a weird glow started emitting from one of the nearby trees.

"What in the hay seed…"Applejack started.

The glow kept getting brighter and brighter. Applejack started to squint, and tried to see what was happening, while the light just got bigger and bigger, and an intense wind blew in her face. She held on to her hat, and shut her eyes. Fluttershy flew down from a nearby cloud to see what was happening. Surprised of the strong power, she shut her eyes and tried not to be blown away as well. Rainbow Dash flew down to check on them too and also got caught into the vortex. The vortex had all of them pushing hard to avoid being sucked in.

"Applejack, what is this?!" Rainbow Dash demanded.

"I have no idea!" Applejack cried.

A mysterious voice started to sound like it was coming through

"Hey…look….worked…portal….Earth….knees…..haha…aaa… haaaa…aaaa," The mysterious voice said, though almost nothing got through.

The voice started to become clearer, and the wind started to go away. The brightness slowly faded, and Applejack, Rainbow Dash, and Fluttershy were all left staring in awe at some kind of weird picture suspended in the middle of Sweet Apple Acres.

A mysterious green little thing came onto the picture, and said,

"It works G.I.R.! Look! An alternate reality! Soon, the humans and their KNEES, will bow down to me! ZIIIIM! MWAHAHAHA! AHHHH!" Just then ZIM just took his first look at the three extremely confused ponies. His smile and cackle quickly faded away, leaving only a face of disgust. "WHAT KIND OF SICK TWISTED REALITY IS THIS?! I would be eaten ALIVE by those monsters!" He cried, with a face filled with horror. "SHUT IT OFF! SHUT IT OFF! DON'T LET YOUR BRAIN MEAT BE SUCKED BY THEM G.I.R.!" Then, he ran out of view. A small little robot giggled, then climbed out of the picture and stuck his tongue at the three. Then he got up and started to dance.

"Dooody! DOO! DOODY DOODY DOOO!" The little robot sang, totally off key. GIR then started to bang his little head on the ground.

"G.I.R.? What are you… WHAT ARE YOU DOING?" The small green thing cowered behind a strange looking piece of equipment.

"I founds me a cow…" GIR slowly marveled.

"Eh? Those aren't cows, GIR," ZIM said, still cowering around the corner. His voice wavered, but was getting more confident.

"What are you guys?" Rainbow Dash asked the strange visitors, as GIR ran up to her, and licked her hoof. "Hey! Cut that out!"

"Looks like some kind of portal…" Applejack commented.

The small green thing stood up strait, and came back up to the portal's view.

"Are you wielding any sort of super weapons?" He asked.

"Beg your pardon Mr. Zum," Applejack started, "But what in the berry bush is a super weapon?"

"Well! I guess you're not a threat then. I AM ZIM! Irken Zim, and have come to explore this dimension to find ways to, uh, make my Earth…. Mine." The Irken said as he now stood before them with no more fear. He then climbed through the floating portal and scanned the area of Sweet Apple Acres.

"So you're, like, an alien?" Rainbow Dash asked out.

"Sure, whatever," ZIM said, obviously lost deep in thought.

Rainbow Dash leaned in to Fluttershy, "Are you having this dream too?"

Fluttershy looked back at Rainbow Dash, with fear buried in her eyes. "I don't think this is a dream…" She whimpered back in a barely audible voice. Applejack looked at both Fluttershy and Rainbow Dash with a nervous look on her face. Then they looked over at ZIM, and saw him placing a little gadget on the ground, and fiddling with it.

"He ain't normal," Applejack whispered to her pony friends. Suddenly Applejack let out a scream "Aaaah! What was that?!"

"What was WHAT?" Rainbow Dash asked.

"Somethin' poked me…"

"I POKED DA COW!" GIR screamed, popping up from behind Applejack. Then, he ran in circles around them.

"Few. That little feller seems in need of a tune-up," Applejack commented, then slowly started backing away.

"C'mon guys, this is like totally awesome!" Rainbow Dash said then trotted a bit closer to the alien.

"This seems to be some kind of alternate dimension…" ZIM said as he kept fiddling with a small hand-held device. "What do you call this place…?" He demanded.

"This is Ponyville," Rainbow Dash started, "Over this way…" Rainbow Dash flew far out. "Is the way to Canterlot!" She shouted from a distance away. She sped back to them. "That way is the Crystal Empire, Ponyslvania…" She gestured to two other directions, "And this all, is Equestria!" Then she smiled pretty wide. "Anyone wanna try topping that explanation?"

ZIM looked around for a second, then made a bit of a pouty face and crossed his arms. "This place is uglier than Dib's head!" He announced. "GIR! Back to the PORTAL!" He commanded.

"Awww… I wanna play with da cow s'more!" GIR complained.

"No GIR, you can play with the cows later, right now must the mission COMMENCE!" He said, shaking his little fist.

"Not so fast!" Twilight's voice sounded in the distance. She warped herself to them. "Who are you? In the name of Celestia, I have the full right to know!" She said, pointing her hoof at the trespasser.

"Eh? I listen to NOBODY but my tallest!" ZIM said, as he continued to walk toward the portal.

Twilight warped herself in front of ZIM again. "Just give me an answer!" She said a little louder. Her pony friends could tell she was starting to burst.

"Move aside, cow beast! You are of little use to ZIM!" The alien cried at the pony as he shoved her away. Twilight flinched. She looked back at the portal, and started to wonder about this whole occurrence. Could it really be possible that Equestria was only one of many worlds?

Twilight took a deep sigh and said, "Fine, return to your world. They aren't meant to collide anyway…" She slightly shook her head.

"Much better BEAST, you best be listening to ZIM!" The alien said as he climbed back into his dimension. Twilight let out a low growl. She could barely tolerate how he was acting, and when she had so many questions too! It was the chance of a lifetime.

"Come GIR! We must continue!" ZIM cried, as he watched his little robot run back to the portal. "Now give ZIM the remote…" ZIM said, not wanting GIR to hold up the plans any longer. He was handed a remote, but it was completely drenched. "Eeewwww, did you put it in your mouth AGAIN?!" ZIM asked, as if it had happened on more than one occasion. GIR just giggled in response, then ran off somewhere out of view to the ponies. He saluted, pressed a button, and the picture went from fizzling to completely gone. Twilight let out a breath that she didn't realize she was holding.

"The Princess will never believe this letter…" She mumbled.

"That was pretty cool..." Rainbow Dash commented, with a slight grin on her face. Fluttershy's slight peep showed she disagreed.

"I don't know what that was, but I didn't like it…" Applejack snorted.

Only a minute later, the wind blew again, and a spot in time was ripped, as the portal reappeared. The alien, this time hopped out with no hesitation.

He looked at them with a desperate look, "ZIM requires…some…help,"