On another planet in this universe, was the planet Cybertron. A giant planet with Cybertronians, robotic alien life forms. For years they lived in peace, until a war broke out for power by Megatron, Leader of the Decepticons. Megatron wanted to rule all life on the planet, all those who oppose him were killed. But Optimus Prime, leader of the Autobots, lead the Autobots against Megatron and his Decepticons. And so the war broke out. Unfortunately, their planet Cybertron was ruined by the war of Autobots against Decepticons. Optimus Prime and his team went to Earth to build a new home to defeat the Megatron and his Decepticons. While being on Earth, they made new friends with human allies like Cade Yeager help them fight Megatron and his army.

Earth-98

The Rebels exit through the breach and ended up in a field of grass.

"Where are we now?" Kanan asked.

"Looks like a field." Wolffe said. As they looked around, they felt relax by the peaceful area. If only if their world was like this.

"This place is so... peaceful." Sabine said.

"Yes, if only our world was like this." Rex said.

"The Watcher said this world is at war. But I don't see any battles?" Kanan said. Just as he finished, a explosion happened.

"I spoke too soon." Kanan said.

They run to see what was going on. When they saw who was fighting, it surprised them. Giant droids were fighting each other. One side seemed of dark gray and purple. The other side had brighter colorful colors and some humans fighting alongside them.

"Whoa. Those are big droids." Zeb said watching them fight with the humans.

"I'm guessing they're the good guys." Sabine said. Suddenly, two laser bolts nearly hit them. They turn around to see one of the dark droids aiming at them.

"It spotted us!" Wolffe said as he begins to fire at it. The others ready their weapons too. The Jedi activates their lightsabers while the others fire with their blasters. The Vehicon continues fire at them. Ezra, Kanan, and Ahsoka deflect the blasts from the bot. Suddenly two more showed up and started to fire at them. It was becoming too much firepower attacking them.

"Guys! They're too strong! We need to get out of here!" Rex shouted.

"Karablast! These buckets of bolts are too much!" Zeb shouted.

"Come on! This way! I think—" Sabine started before getting hit by the bot. The bot then pointed it's gun at her ready to end her, but then a blue vibrational blast knocked it away. She turns to see a giant black droid with it's cannons ready.

"Get away from the girl, punks." Ironhide said. The vehicons draw their attention to him only to get blasted by the rebels. Ahsoka sliced their legs, knocking them down and Ezra and Kanan finished them.

"Phew! That was tough." Ezra said.

"You're telling me." Kanan said.

"Uh, guys? We got company." Zeb said. They turn to see the Autobots and the humans looking at them. Ironhide goes up to Sabine to see if she's okay.

"Are you okay?" Ironhide asked.

"Yes. I'm fine. Thank you. My name is Sabine, and what's yours?" Sabine asked.

"Ironhide. Autobot Weapon Specialist." Ironhide said to her. One of the men walked up to the group.

"Are you guys okay?" The man asked.

"Yeah, we are. Thanks. Who are you?" Kanan asked.

"My name is William Lennox. Leader of my team. Maybe I ask what are people like you are doing here?" Lennox asked.

"It's... a long story. You probably won't believe us." Ezra said.

"Maybe back the base you can tell us." Lennox said as begin to walk.

"Ratchet, open up a breach back to base." Ironhide said through his com link.

"On it." Ratchet said. Just then, a green breach is opened.

The men and Autobots go in with the Rebels being last. They end up in an underground base. They look around to see men and other Autobots working.

"Whoa. This place is amazing." Ezra said. Behind them a blue and red Autobot and a man besides his foot walked to them.

"Greetings strangers, welcome to our base. My name is Optimus Prime, leader of the Autobots. Besides me is my friend Cade Yeager." Optimus said.

"Hey. So... mind telling us where did you guys come from?" Cade said.

"Okay. But you might want to sit down." Ezra said. They sat down and they begin to explain that they came from a different universe. How they got here and now they're trying to got home. The soldiers and Autobots were intrigued to hear this.

"...And that's how we got here." Ezra said finishing their story.

"Very interesting. So the Multiverse is real. I've had my theories about it. You guys are proof of that." Cade said.

"Would you mind introducing yourselves and what's going on?" Hera said.

"Well, Optimus, Ironhide, Lennox, and me already introduced ourselves. That over there is Ratchet, Bumblebee, Sideswipe, Hound, Drift, Crosshairs, Barricade, and Grimlock." Cade said pointing to the Autobots and Dinobot.

"Hey." They said to the rebels.

"You best get comfortable with Optimus." Cade said as Optimus came.

He then explained how they came to Earth. How that they once lived on another planet called Cybertron. For years they lived in peace, until a war broke out for power by Megatron, Leader of the Decepticons. Megatron wanted to rule all life on the planet, all those who oppose him were killed. But Optimus Prime, leader of the Autobots, lead the Autobots against Megatron and his Decepticons. And so the war broke out. Unfortunately, their planet Cybertron was ruined by the war of Autobots against Decepticons. Optimus Prime and his team went to Earth to build a new home to defeat the Megatron and his Decepticons. Now with their human allies, they are trying to stop Megatron.

"Wow, you guys are truly fighters." Rex said.

"Indeed. We only hope to end this war." Optimus said.

"So do you guys think you can help us get home?" Wolffe asked.

"I could reprogram the groundbridge to open a inter-dimension portal to the Multiverse." Ratchet said.

"But... you guys say you're rebel fighters, right?" Cade said.

Yes... we are." Zeb said with suspicion.

"If you guys can help us with one mission, then we can open the portal for you. What'd you say?" Cade said.

"One moment." Kanan said. They huddled around each other.

"What do you think?" He said.

"Can we trust them?" Zeb asked.

"Well, they did save us from getting killed. I think we owe them one. Plus, they're the only way to go on." Ezra said.

"The kid's right. One mission, that's all." Rex said. They turn around to give their answer.

"Okay. We'll help. One mission." Ezra said.

"Great. Let's get to work." Cade said. They got ready to go to the mission.

"So... tell us what this mission we're going on." Wolffe said.

"It's a rescue mission. 4 Autobots along with 3 kids have been captured by Megatron and his Decepticons. Ultra Magnus, Bulkhead, Arcee, Wheeljack, and the three kids: Jack, Miko, and Raf. We managed to locate their hideout, but we're going to need some help on the field." Cade said.

"You'll be going teaming up with me, Ironhide, and Lennox to infiltrate their base and free our friends while we deal with the others." Cade said.

"Okay. Let's go." Kanan said. They all got ready to go out.

"Ratchet. Open the groundbridge." Optimus said to the medic. He opened it.

"Get ready, cause here we go." Cade said as they run into the portal. They end up in a ruined city where there's decepticons firing everywhere.

"Alright! Let's move!" Cade said as he starts to fire at Decepticons. The Rebels begins to fight as well.

"Alright, let's show these metal heads what we can do." Wolffe said. A missile heads towards them but Barricade destroys it. He nods at them before going back to the fight.

"Go! We'll hold them off! Save our friends!" Barricade said. They followed Cade, Will, and Ironhide into the building.

They come across many Decepticons coming there way. Ahsoka sneaks behind one of them and starts cutting it's parts off. Kanan and Ezra combo force push them away and Ironhide finished them off.

"Keep moving! We're almost there!" Will said.

"Come on, you clankers! Is that all you got!" Rex shouted. Starscream shows up in front of them.

"You should have never come here! Now you will all perish!" Starscream shouts as he's fires a missile at them. Kanan then forced it to go back at him.

"Aaaaurrgh! You'll pay for that!" He said as he flies off.

"Great work! Come on, the prison area shouldn't be far." Cade said. They keep blasting Decepticons right to left and finally reached the prison bay.

"They're here. Help us free them." Ironhide said. Seeing the Autobots and kids locked in capsules. Ahsoka, Kanan, and Ezra cut them open, freeing the trapped heroes.

"Thanks guys! Alright! It's Wrecker time!" Bulkhead said as he and Wheeljack starts bashing Decepticons.

"Just like old times, Bulky." Wheeljack said.

"About time we got out of there." Ultra Magnus said. Arcee shows up in front of the rebels.

"One of you get the kids to safety and the rest help us." She said. Hera grabs the kids and takes them to Cade.

"Cade! You found us!" Miko said as the three kids hugged him.

"Great work guys. Come on! Let's get you home." Cade said. The Rebels follow them outside to see the Autobots fight.

"Come you dirty mutts! Come and get some!" Hound shouts as he fires his chaingun at the Vehicons. Grimlock jumps out and starts ripping them apart and burned them with his fire breath.

Bumblebee rushes over some Vehicons and slide tackles them. Optimus Prime and Megatron were dueling it out. Breakdown fires at the rebels but gets interrupted by Barricade. Breakdown saw him and was mad.

"Traitor! You use to be one of us, I guess they made you soft." He said to the former Decepticon.

"No, I'm done with chaos. I chose the right side." Barricade said before firing at him.

"Aaaurghh!" Breakdown roared. He was about to strike before being tackled by Grimlock and Sideswipe.

"Decepticons! Retreat!" Megatron roared as they fly away. The heroes cheered in victory.
   _________________________________

Back at the base, the Autobots, humans, and Rebels celebrated in their victory against the Decepticons. Ratchet with Wheeljack were reprogramming to groundbridge to open a breach to the Multiverse.

"Gotta say... you guys were great out there." Lennox said to the crew.

"Thanks. Happy to help." Kanan said.

"You guys are so cool!" Miko said.

"Thanks, I guess we are." Ezra said.

"As much as I like all this appreciation, but I believe it's time we continue on." Zeb said.

"I've think we're almost done." Wheeljack said. Suddenly, the groundbridge opened a blue portal. Showing that it worked.

"Alright. We can go now." Wolffe said.

"Awww. I wish you guys could stay." Miko said.

"Sorry, kid. But we have our home to get back to." Rex said.

"Thank you again for saving us." Jack said.

"No problem." Ezra said.

"Hope to see you again." Raf said.

"Me too. You guys are awesome." Sabine said to Autobots.

"Know that of you ever need help. Find us." Optimus said.

"Thanks." Rex said as he saluted to them and they salute back. The Rebels then jump into the portal, off to the next world. Who knows what world they'll go into now?

So the Rebels got to meet Optimus Prime and his Autobots, who knows what world they are about to enter. The next world is one that's... cartoony.