In the Crystal Desert Zone, Sonic, Y/N, Tails, and Bunnie are chasing after Metal Sonic, who's holding the blue Chaos Emerald he found. Sonic and Y/N are close behind the robot with Tails and Bunnie behind them. Dusts were being blown at the hedgehog siblings' faces by Metal Sonic's rocket from its back.

"*PTHHT!* Kicking up sand is cheating, ya jerk!" Sonic shouted, closing his eye from the flying sand.

"We can't let him get away with that emerald!" Y/N shouted, throwing kunais at Metal Sonic who dodged them while smacking one off with its claws.

Metal Sonic curled itself and smashed through the colorful crystals as shards went flying. Tails and Bunnie quickly grabbed Sonic as they fly over the broken crystals with Y/N kangaroo jumping beside them.

"DIMENSIONAL ANOMALY DETECTED. POSSIBLE GENESIS PORTAL. POSSIBLE ESCAPE ROUTE."

Metal Sonic then boosted itself to go faster from the rocket.

"Hey!"

They immediately chased after that robot as Bunnie blasted out laser and Y/N summoning her pink shield from her ruby and flung it towards Metal Sonic. Sonic sped up as he kicked up the sand, accidentally making it fly towards Tails' face.

"Don't even pretend you can outrun us!"

"*PTHHT!* GAK! Sonic!"

"Sorry, bud."

As they run down the sandy hill, Metal Sonic activated the portal as it goes to jump through it when Sonic and Y/N tackled the robot.

"Oh, no you—!"

Before Bunnie and Tails could come in next, the portal closes on them as soon as Sonic, Y/N, and Metal Sonic went through. They crashed onto the ground and found themselves in the place called the Burning Ruin Zone.

"...don't. Whoops."

Sonic and Y/N got up to see some lava and ruined rocks and when they looked up, they were shocked to see someone floating in the air as they closed the portal they went through with their telekinesis.

"Silver??" Y/N questioned.

Silver glanced down at them in shock.

"Y/N?! Sonic?!"

Suddenly, Metal Sonic kneed Sonic in the gut, causing him to grunt out in pain before it flew off leaving him to kneel the ground. Y/N ran over to her brother as Silver landed beside them.

"Sonic!!"

"Oh, man! Are you okay?"

"Yeah. Fine. Grab Metal Sonic!"

Silver looked to where Metal Sonic had gone off.

"Um... He's already gone. It's like he's faster than you..."

Y/N deadpanned at him for that as she slowly helped Sonic up who's holding his stomach.

"Lies and slander. *KOFF!* We need to hurry after him before..."

He stopped himself to see there's no portal here.

"...I guess there's not a whole lot to escape to, is there?"

"Sorry, I wasn't expecting anybody to come through!" Silver apologized.

"Can you explain this?" Y/N asked in confusion.

"I've been closing all the Genesis Portals I can find, remember? I was in the middle of closing the one leading from your world to this messed-up dimension when you two and Metal Sonic tumbled through. With the portal closed, he's trapped here with us!"

"Super! Except for the whole 'we're trapped' part." Sonic said sarcastically.

"Sonic!" Y/N smacked his arm.

"Hey! Don't worry! There's three budding Genesis Portals here."

Silver showed them the hologram of the map from his glove.

"Great. Three random portals and you think one will lead back home beacause...?"

Silver flew up ahead with his telekenesis as Sonic and Y/N followed after him in speed.

"I've closed a lot of Genesis Portals. I'm still not sure why, but I've noticed a high percentage of them lead back to your world and time."

"If these things are popping up all over the place, aren't you wasting your time trying to close them all?"

"It's... kinda daunting, to be honest."

"Yeah. But there's no one better than you that can save everyone as well as time." Y/N assured.

"You got that right, Y/N. That's why what if someone gets lost through one? Or something dangerous is let through? I couldn't live with myself knowing I could've done something."

"Good point. I guess I'd do the same."

They zoom around the area while being careful with lava and fire that are bursting out as they made it out safely as they're now in open road.

"Kinda along that line--do we win?" Sonic asked.

"Win what?"

"Fix the shatterde planet, he mean." Y/N said.

"I...uh... probably shouldn't say. Shouldn't pollute the time-stream or history..."

"This coming from you?"

"Hey! I did it to save my time!"

"Yeah--I know. And we're trying to save everyone in our time!"

"Whoa! Hold on..."

They skid to a stop as Silver found something from the hologram.

"So a little heads-up would be nice!"

"Shut it, Sonic! Look!"

They look down the big hole to see three portals beneath the pool of lava.

"...We're here. The Genesis Portals should be appearing around here any minute."

"Good. It feels like my every breath is on fire."

"Stop being picky."

"It's better than the world that was completely overgrown with angry plants. The pollen was actually hunting me down!"

"Yikes..." Y/N winced to hear that.

"So... do we have a plan?" Silver asked.

"Yup! Metal Sonic went straight for the last Genesis Portal. That tells me he can detect them. We'll wait for him to detect these portals, and then ambush him!"

"Cool!"

"...Except..." Y/N started, remembering something with grimace.

"What?" Silver looked at her.

"Metal is based off my brother, and thinks like him. Which means he might..."

Before she could finish her sentence, Metal Sonic came in between them and knocked them with his claws, causing them to yell in pain.

"AH!"

"OW!"

"DANG!!"

"That punk... He's heading for the portals!"

"I've got him!"

Silver activate his power and trapped Metal Sonic as he froze.

"HA! How d'ya like that, you--?"

Metal Sonic activated Black Shield--Defensive Matrix, freeing from the telekenesis.

"IT'S NO USE."

This got the robot distracted enough for Sonic to kick the Chaos Emerald out of his metal grasp as it fell towards the pit of lava.

"And metal fumbles the emerald!"

Sonic jumped down after the emerald.

"Race ya for it!"

Y/N jumped down after him and Metal Sonic.

"Silver! Find out where those portals go! We can't risk Metal Sonic going back to our world!"

They raced down as Silver flew over to check on three portals. They race against Metal Sonic head on as they struggled to go faster to get that emerald that kept dropping as it was about to fall into the lava when it was saved by Silver's telekenesis.

"Hey, Metal Sonic? You're too slow!" he taunted.

Metal Sonic was about to go after him when Sonic spin dashed right at its stomach to get back at him from doing that to his stomach before Y/N jumped over and knocked Metal Sonic towards the lava with her whip. The hedgehog siblings zoom up to Silver who's holding onto the rock panel.

"Is that going to stop him?"

"For maybe thirty seconds. He'll never stop."

"Never."

"Any idea where those portals go?"

"Yes! Those two lead to other worlds, while that one leads back to your world. It should be pretty close to where you two left from, actually."

"Cool. New plan. First, gimme the emerald..."

While they're planning, Metal Sonic bursted out of the lava unburned as it created Burst Shield--Joint Matrix around its body as it sees them and charges the hedgehogs.

"Thanks for the emerald, slowpoke! Enjoy the scenery, 'cause we're outta here!"

Sonic, Y/N, and Silver zoom through the wall of the rocky pit with Metal Sonic on their tail.

"Er... you sure antagonizing him is a good idea?" Silver questioned, looking back.

"Proabably noy, but it's fun."

"I trust my brother. Because the thing about Metal Sonic is he won't stop. Ever. He'll always keep coming."

"Amd while me and sis'll never give up either..."

They stopped towards the portal as Metal Sonic had fallen for their trap and went through that leads him to somewhere else that's not Mobius.

"...we do know when to stop running."

Once Metal Sonic went fully into the Genesis Portal, Y/N shouted to Silver.

"Close it! Quickly!"

Silver smirked and closed the Genesis Portal with his telekenesis. They then headed over to another portal that leads them to Mobius.

"Here you go--your way home. Don't worry, I'll close this one behind you."

"Thanks, Silver. Wish you could stay to our home where you don't have to worry about your time." Y/N said.

Silver blushed and smiled.

"Don't worry. I'll come and visit once everyone is saved."

"Okay."

Sonic interrupted their moment.

"Thanks, but... I gotta know. Fixed or not fixed?"

"Now's the time to know about it?"

"Hey, I have to know. You'll never what's gonna happen."

"But we can't risk it. We can change the future."

"It's okay, Y/N. It's... um... It's like my uphill battle trying to handle the Genesis Portals. If I told you two that you do succeed, then everything will be fine, right? And if I said you're destined to fail--would you really accept that? Would you give up?"

Sonic went silent as he stared at the Chaos Emerald before he grinned.

"Nah. That'd just mean we'd fight destiny too!"

Sonic went into the portal first as he gave Silver a peace out finger gestures.

"Alright, forget I asked. We're outta here. Later, Silver!"

"So long, Sonic!"

Once Sonic went in, Y/N went last as she look back at Silver.

"Be careful out there."

"Don't worry. I can handle it."

Y/N smiled and gave Silver a kiss on the cheek, making his face turn pink a little.

"That's for good luck. Bye, Silver!"

She then went into the portal before Silver closes it.

"See you, Y/N. And good luck. I'm... I'm sure both of you can do it."

Silver then headed over to the last portal.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Meanwhile, back in Crystal Desert Zone, Sally was showing the Freedom Fighters the holograms from her small computer.

"...And we can't leave Sonic and Y/N stranded...wherever they are. Tails and Rotor--you're to start researching a way to open that breach. Sonic said they're called 'Genesis Portals.' Nicole and I will keep in contact with G.U.N. and look after wounded soldiers until the evac arrives. The rest of you will comb the desert in pairs. See if you can't find another Genesis Portal so we can--"

She was cut off to see the Genesis Portal above them and something drops on the ground. It was Sonic and Y/N who fell to the round as he held up the Chaos Emerald with her giving out thumbs up.

"...or that." Sally deadpanned, turning off the hologram seeing that there's no need for a plan.

"Guess who's awesome? That's right!--Me and sis!"

"We... got the emerald!"

Amy jumped into Sonic's arms, much to his surprise and displeasure.

"Oh, Sonic! I was so worried when they said you two vanished with--!"

She pulled herself away from him to smell something disgusting.

"Blech! Why do you smell like a fireplace?!"

She removed herself out of his arms as Sonic teased her.

"C'mon, we're teammates! Don't you always want to be by myside?"

"I do, and I always will but I'm keeping my distance until you've showered! You too, Y/N!"

"Got it." Y/N chuckled, getting up with the help of Kneecaps who's relieved to see her okay.

Sally helped Sonic up next as she waved off the stench from him.

"Welcome back."

"Thanks. Sal."

Sonic toassed the emerald to Tails who caught it.

"We're six-for-seven on the emeralds now! But what happened to Metal Sonic?"

"Mmm... Don't know. But we don't have to worry about him for a while, I'm sure."

"Non, but there is still ze planet being broken, and we have not even found one of ze temples. There is plenty to being worried about!" Antoine said.

Bunnie gently grasp his hand.

"Gotta focus on the small victories, hun."

Sonic gave them thumbs up with a grin.

"Exactly! We saved some G.U.N. troops, grabbed an emerald and sent Metal Sonic packing! Me and sis just ran through a world made up of fire and misery, and now we're back here like it ain't no thing! We've been through some crazy stuff together, which means we're qualified to take on even crazier things!"

"That's right, bro! Because we're the Freedom Fighters! We can handle anything!"

This made everyone smile, knowing they're right.