One normal day in Equestria, some ponies had noticed an object in the sky. A trio of random ponies including Derpy Hooves speculated on what it was: "A bird?" One said "A large pegasus?" the second said "No...it's...um I have no idea!" Derpy finished while going into her trademark crossed eyes face.

By that point everyone in Ponyville was watching. Pinkie of course knew exactly what it was. "It's a space ship!" she exclaimed. "A what?" a confused Twilight Sparkle said. Being the brains of the bunch she figured she would know what it was. "You really need to read more sci-fi books!" Pinkie replied as the ship landed.

A large exit opened and a ramp down came out. A pair of large robots emerged. They were Optimus Prime and Ratchet. Pinkie became paralyzed with excitement. "OOOOOOOOOOH!" was the the last thing she said. "I am optimus prime. We're a bit lost." Optimus stated. "I TOLD you to go east at the Albuquerque system" Ratchet scolded.

Rainbow dash, being impulsive as usual rushed up to Optimus' face and said "Yea well, be lost some where else!" "Optimus can I PLEASE?" Ratchet complained, readying his weapon. "No Ratchet. They're sentient life forms and you know that I won't allow it anyway." Optimus said, putting his servo on Ratchet's arm. Applejack ever the redneck said "Who ya calln' "sentient life forms" punk?" Twilight would have usually intervened at this point but she was actually preoccupied, not to mention not there anymore.

So it was up to Dash to explain to Applejack. "He means we can think...well MOST of us can!" Applejack's expression tensed and she said "Right, I knew that!" it was pretty obvious she lied, but she's the type who's too stubborn to admit it regardless if she represents the element of honesty or not. Just then two radiant magical swirls showed up between the autobots and ponies. One was light and the other was a dark purple. Both parties backed up. Optimus and Ratchet had a few encounters with magic before so even they were wary. Then, before them appeared the Princesses.

"Optimus! So good to see you again!" Celesita said. The ponies exclaimed "Princess!" Luna wasn't pleased that they didn't mention her, but she wasn't really surprised, as she had yet to redeem herself. "Yes it's good to see you too princess! And I see your sister has learned her lesson?" Optimus said. "Yes she has. And who is this?" Celestia replied. "This is my medic and engineer, ratchet." Optimus replied back. "Normally the two are interchangeable what with being giant robots, but we have to protect a world of flesh creatures not unlike yourselves." Ratchet added.

"You know these tinheads?" Rainbow Dash inquired. "Yea, and how did ya'll know ta come?" Applejack added. "Well first of all, being the ruler of this world means I deal with external affairs. We don't usually have much contact with outsiders but yes we have met before." Celestia explained "As for how I knew to show up? Shortly after they arrived Twilight contacted me letting me know what happened. In order to prevent a secne Luna and myself rushed over here as soon as we could." Twilight just got back from her library at that point.

"I see your sister has finally realized the error of her ways" Optimus said. "Yes, the six brave ponies before you are the ones to thank for that. They defeated her Nightmare Moon persona and Luna realized being evil isn't very easy." Celestia tilted her head and asked "How have things been for you Optimus? Last time I saw you you weren't a prime!" to this optimus hung his head and replied "To sum it up, cybertron has been lost and I am the last of the Primes." he then picked his head up and smiled "We have made a new home on a planet called earth. We have met creatures known as humans, and they have become caught up in our affairs so we have no choice but to protect them."

Optimus looked to his ship and said "I will contact Pony Magnus of the maximal division to act as an envoy to assure peace between us in the future and prevent this sort of thing from happening again. You're just lucky the decepticons didn't follow us here."

Just then one of the random ponies, a colt, started dashing to Optimus shoving every other pony out of his way. "That's where you'd be wrong Optimus! Ponyscream, terrorize!" He said transforming into a robot. "A predicon?! I should have known we just can't avoid conflict." Ratchet sighed. "Let US handle him!" Twilight said, her friends lined up on each side of her.

"Are you sure you can handle him?" Ratchet said rater uneasily. "I wouldn't underestimate them, trust me. Right princess?" Optimus said, winking with his right optic. Celesia giggled. As it would turn out, Ponyscream was a triple changer, with his third form being similar to a seeker.

"Try to keep up hmm?" he challenged. "No sweat!" Rainbow Dash then chased after him. Ponyscream looped around and fired some missiles that Dash effortlessly evaded. He then started shooting like crazy at rainbow dash but missed every shot. "It seems I've underestimated you!" Rainbow Dash landed on his wind shield, said "you're not very good at this are you? and blew a raspberry at him. "THAT'S IT! I AM GOING TO DESTROY YOU!" the triple changer …well… screamed as he landed and fired an ion cannon at dash. But Ponyscream forgot that only worked on machines…

Ponyscream then shot a barrage of homing missiles "DODGE THIS!" he yelled. "Pft that'll be a snap" Dash taunted as she started to accelerate into some clouds…the next anyone saw of her, she was trailing the after effects of a sonic rainboom and she then dove under ponyscream. This managed to deal severe damage but to but not destroy him. "Time to show off my buck-a-neir blaze!" Rainbow Dash proclaimed and decimated Ponyscream with it…sending him flying

"Energon shortage, stasis imminent" a computer voice said. "Im...impossible!" Ponyscream changed back into his pegasus form and landed near his own ship. "YOU HAVEN'T HEARD THE LAST OF ME!" he screamed taking off. And everyone just laughed.

Author's Note

First draft Originally posted to Deviantart on Jun 30, 2011 this is still a very rough draft, but I never really bothered to fix it up.

Shortly after I wrote this, this happened: https://www.youtube.com/watch?v=8er83h9Bbn8 and yes I edited the battle.

This is all pretty much very detached from Transformers Prime's canon, or what little continuity exists between the works in the "aligned" continuity family. I didn't know about the Predacons at the time.