After a long journey through the Undiscovered West into Canterlot City. Hot Rod and the company are ready to forward to attack. Until Hot Rod felt a vision, he screech his tires away and the Autobots transform into robot. Hot Rod transforms and he feels pain about a vision. Bumblebee sees Hot Rod for what is happening "What's up with him?" He said "He's seeing a vision. Bumblebee, shoot from the stingers!" Sunstreaker said. Bumblebee use the energy stinger to shoot Hot Rod at the head, he feels electrecuted with him and struggling with his mind. Hot Rod laments down and he feels about a vision. Applejack runs to him about a vision "What did you see?" she said to Hot Rod "There was a Prime artifact, in a pillar of crystals… is dead!" He said about the vision of Crystal Empire is fallen. Applejack gasps to see the Crystal Empire is next strike "I think I know where they went." Megatron said and he press the hologram map of Equestria to see the army of Mercenaries and Villains of Equestria featuring a hundred red dots with a symbol "The Crystal Empire!" Bumblebee said and the Autobots are ready to fight to the strike of Crystal Empire. Until, Alpha Trion arrives to the Autobots about the fearest moment "What remains of an ancient artifact. This was the Emberstone. Made by my brother, Quintus Prime. Father of the Quintessons" He said about the truth and the Autobots feels about Quintus' ambition to made Quintesson army. Hot Rod knows about the real threat about Quintus Prime and the Quintessons "I thought Quintus was passed away for millions of years. Also the Quintessons are evil" He said "No. They were jealous and ambitious. But I suppose that is where evil begins… with ambition" Alpha Trion said and the beginning of the past where the Early Equestria begins with Quintus Prime and Alpha Trion. "The Equestrians we made shaped the lives of those who live them, but I never realized how badly my brother longed to outshine me." He said, the scene before Alpha Trion saw the first Equestrians with Alpha and Quintus, Quintus saw every Equestrian feels sadness and weak. "So Quintus broke our most fundamental laws and merge faces into judgements" He said, Alpha Trion looking to Quintus about making Quintessons five faces of darkness using the forge of Solus Prime and anvil to forge a robot life. "He hoped by making miracles Equestria would see that he was more than just a simple Prime" he said, Quintus presents to the Equestrians saw how he made the first Quintesson Judge. Until the Judge turns into evil, Quintus gasps and the tentacles rises up and they scared for Equestrians. Alpha Trion sees Quintus' creation made a big mistake "But uniting even two sides in a single Quintesson brought disaster. The Quintesson should have stopped, but he didn't" until the Quintesson made an army of the Quintesson judges, guard and Sharkticons over Cybertron to make "So hungry was his creation for power that he merge all the elements into one emberstone" he said, until Alpha Trion is ready to leave the Quintessons from a stone "But I knew it would not be so. Prophecy had foretold it all. The Quintessons was draw into that world and so was my brother" He use the power of the Emberstone shoots the Quintessons away to the far reaches of space. A planet "Then it was gone and our world was as you found it, as it is now. What is saddest of all is that it was all foretold in prophecy, from their friendship's beginnings to our standing there" Alpha Trion said about the truth of the Primes entered Equestria "You know how this is going to end? Us?!" Hot Rod asks to Alpha Trion "I know what is written" Alpha Trion said and he holds the book of the Covenant of Primus, the Autobots and Ponies gasps to know about King Sombra's stealing "This is madness… to steal his book!" Bumblebee ask to Alpha Trion "Exactly… yet King Sombra stole the artifact" Alpha Trion asks to the Autobots "But how can Sombra…?" Rarity replied and she stops "The Covenant of Primus" He said "But he was stole it" Bumblebee said to him and after a glowing Ground Bridge approach to Crystal Empire. Alpha Trion says to the Autobots and Ponies, Hot Rod and the Autobots follow to the attack "Come on!" He shouts until Alpha Trion stays in the forest and he's ready "Go now, I will join you when I know where we are going." He said and the Autobots travel to the ground bridge to Crystal Empire. After the portal close, Alpha Trion feels a powerful being who come before Rainbow Dash's competition "Come! It is time!" He said, now… Battle Unicorn arrives to Alpha Trion, he neighs to him for ready "Yes. You are right. I have stood on the side-lines too long" He said and it's time to join… from the beam of light. The light beam represents a space bridge to join new teams, a junkyard ship with all junk-like bots called… Junkions. After the Autobots and Ponies enters Crystal Empire, Hot Rod enters to Princess Cadence for help "Princess Cadence, you must call for aid. The Mercenaries strike on Crystal Empire" He said "Yeah, Sombra is going to terrorize the town!" Rainbow Dash said. Cadence gasps and Shining Armor holds Flurry Heart to protect on the strike of Crystal Empire "And who will come?" She asks, until the ground bridge arrives with the army of Junkions including the high leader, Wreck-Gar. He arrives to Crystal Empire and Hot Rod feels a bah-weep-gra-nah-weep-nini-bong greetings "How does this possible?" He said to Wreck-Gar "I came word from Alpha Trion of Cybertron. We are proud to fight alongside men once more" He said, Applejack ask to Wreck-Gar to speak like crazy "Where did you talk like that?" She asks "a TV, we drop some TV" he said "Wreck-Gar is right. We are needed elsewhere" Battle Unicorn said to the Autobots in robot mode, while arriving for preparation of the battle "You've been busy" Rarity said to him "The time for Equestrian mode is over. Now I join the fight!" Battle Unicorn said to join the Autobots "So you are the first Equinoid" Bumblebee said about the species of Cybertronains who transforms into earth ponies, pegasai, unicorns and mysterious alicorns. But Battle Unicorn refuse to them "No, just a special Equinoid who'd like to help" He said to Ironhide "Yeah, right" Ironhide said to Battle Unicorn "Now, we must leave" He said "But what about Crystal Empire?" Hot Rod ask to Battle Unicorn to fight "You don't know?" He question to Hot Rod, he feels about the Mane Eight to stay Crystal Empire to fight "Of course!" He said to the Mane Eight "That's right. the time for Friendship has passed." He said to Megatron "And fight without us?" He said "Sure they will!" Rainbow Dash said to Megatron while she's flying. Until the Mercenaries attacks, the ponies team up with the power of friendship. Applejack kicks the rocks into the Mercenary troopers. And the Junkions are chanting for words "Destroy Mercenaries, kill the Mercenaries, freedom for Equestria!" He shouted and transforms into motorcycles with Wreck-Gar to fight Crystal Empire. "Ride! Ride for Junkion, and the worlds ending!" Wreck-Gar shouts and they charge to Fight Doubledealer. Doubledealer gasps to see an army "This is not good, we must forward retreat!" Doubledealer shouts to the Mercenaries "We cannot retreat, we must fight to the Crystal Empire!" Bugbite said so that they will never give up "We fight for the Mercenary! For Quintesson!" Exhaust shouts and they charge to the Junkions. Battle Unicorn and Hot Rod lead them to go in Canterlot "We must go" He said, the Autobots follow to Hot Rod and Battle Unicorn to Ponyville. On Ponyville, the Autobots stops and Battle Unicorn ask to them "Gather round. The guardian of Equinoid brings vision. Join our hands and they will share what they has seen" He said until they hold their hands together to see the glowing light for what they saw. Hot Rod saw Optimus Prime and Twilight Sparkle got trapped into the cages in Canterlot Castle. Until King Sombra and the villains of Equestria found the artifact, the Emberstone steal from them into the cave, and the vision stops. Hot Rod saw Optimus and Twilight got trapped "We're too late!" He said "That is what the villains has become. They belongs to Grogar now" Battle Unicorn said "And what does it found?" Bumblebee said to him "It was an Emberstone. We must hurry" Battle Unicorn replied to Bumblebee "You know where he's going?" Hot Rod ask to Battle Unicorn "Canterlot Castle" He said about the top of the mountain "But why Grogar want the Emberstone?" Hot Rod ask "He wants to created an opening between Equestria and the Unknown Dimension" He said "Unknown Dimension? Does that mean… look like earth?" Hot Rod ask to Battle Unicorn. Until the villains of Equestria finally arrives to Grogar and the Quintesson "Grogar! we have brought the artifact of the Emberstone" He said to Grogar and stands up for a new phase "And now they will open a portal to the Unknown Dimension" He said, and the Quintesson give the Emberstone from Sombra and he ask "What must we do?" He said. But Grogar smile from his betrayal. "Did you just say… guilty… or INNOCENT?" Grogar smiles and he use the bell to absorb the Quintessons' power and the Emberstone Chrysalis saw Grogars power into the Quintesson Judge "Wow, he is more Innocent than this tentacle creature" She said, Now the Quintessons got finally drained to Grogar "Yes… Yes! The power is mine!" Grogar laughs and he's starting to transform into a wicked ram "Nooooo!!!" Quintessons screams and yells, after it finally drained to him. Now, with a powerful dragon wings, fetlocks raise and the eyes turn red. He turns into a giant, size of the castle in Canterlot. The Autobots gasps to see a giant Grogar rises from above "What is that?" Hot Rod said to Battle Unicorn "That is an ultimate mode to Grogar. We have run out of time. Hot Rod, the time to bring the Galaxy Fulcrum. Take to the Last Prime. It's our only hope!" Battle Unicorn said, and Hot Rod is preparing for the final battle with the team of Autobots. The Endgame… has begun.