As the Kraken, Yolkomotive and the Mothership arrive at the Grim, Nine counts on his fingers.

"What? How?" Sonic and Gwen questioned in confusion.

"They triangulated your position and used your energy signature to breach the dome. Clever. That's what I would've done." Nine figured out.

As the three aircraft continue their approach, Thorn, Birdie and T'Challa swoop down towards Sonic, Gwen and Nine.

"Thorn!" Sonic said, astonished.

"T'Challa!" Gwen said.

"Uh, be right back!" Sonic said to Nine

They run and skate towards Thorn, leaving a frowning Nine on his own.

"Predictable." Nine said.

They stop by each other and the aircraft land.

"Sonic? Gwen?" Thorn said.

"For the Chaos Council!" Dr. Deep said.

The Chaos Council and Eggforcers war cry and charge onto the ground, around their Yolkomotive. Denizen 1998, Rebel Rouge, Squad Commander Red and Knucks land on their side of the ground, staring at Sonic and Gwen. Sonic and Gwen jumps onto one of the vehicles, looking at them confused.

"What are you all doing here?" Gwen asked.

"It's called saving your life. What do you think we're doing?" Knucks said.

"No, that's not the deal. We're gonna give ourselves up, you guys are spared." Sonic said.

"And let that villain Nine do whatever he wants with you? Not an option." Squad Commander Red said.

"No one believes that fox will keep his word. You fought at our side, all of us, often enough. Doing the same is the least we can do." Rebel said, flying up and getting closer to Sonic and Gwen.

"Actually, the least we could do would be nothing." Batten said, flying up quickly in front of Rebel.

"Can we move this along? I got places to be, and they're disappearing as we speak." Knucks asked, annoyed.

"This was your plan, to catch me off guard?" Nine asked, accusing.

"Hey, we're as surprised as you are." Gwen defended.

"Who knew we had so many friends?" Sonic said, revealing all of Sonic and Gwen friends - and the Chaos Council - in their battle poses.

"You've betrayed me for the last time. The deal is off!" Nine glared.

"How about a new deal? Hand over the Prism, join us. We'll save the Shatterverse together, and then we can laugh about this over a couple chili dogs." Sonic suggested.

"I hate chili dogs. You think you can come here and make demands?" Nine growled, causing Sonic and Gwen to gasp in horror.

Having lost his patience, Nine rises.

"This is my world!"

The Alpha Grims surge towards and protect their citadel.

"I told you coming here was a bad idea." Gnarly said frightened.

"Don't do this! Look around, you're outnumbered. Give us the Prism and we can save everything." Gwen begged.

"You won't even be able to save yourselves."

Nine flies up to and lands at the top of the tower. He lasers his mechanical tails at the Paradox Prism, which charges up electricity. The dome flickers waves and changes colors and starts shaking the ground, generating a large dust cloud. The Citadel grows taller, with bright crystal structures protruding out, forming a wall around the outside of the citadel. The camera cuts to three of the scavengers, who fear for their safety, along with the Chaos Council, Sonic and Gwen, where crystal walls also grow around him. Nine lasers to the Paradox Prism, flies forward, and deploys green lasers at each of the Alpha Grim Robots, generating clones of them. Multiple identical Grim Robots of Sonic, Amy, Knuckles, Rouge and Birdie jump out onto the ground and display their fighting stances.

"So much for Nine surrendering." Knucks deadpanned.

"Robotic Sonics? The nerve, he stole our idea!" Dr. Deep exclaimed.

"It didn't have to be like this." Gwen said, not believing he's willing to fight them.

"Sonic, think, Nine brought you here so he could drain your Prism energy. You can't just go rushing off." Rebel said to Sonic.

"You're right. It's too late to fix this by myself. Let's teach Nine that if he messes with one of us, he messes with all of us." Sonic said as Gwen stood by his side while she got on T'Challa's back.

They cheer in celebration.

"We're with ya!" Ally said in unison.

"Enough is enough, ATTACK!" Nine scoffed in fury before ordering.

The Alpha Grims charge forward.

"CHARGE!" the siblings yelled.

Sonic, Gwen, the rest of his friends and the Chaos Council charge forward. Lasers are being shot in the background. Display Sonic's team and the Grim robots on opposite sides.

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

The two sides clash. Grim Knuckles knocks out an Eggforcer. Dread swipes his sword at another Grim, knocking it out. As two Grim Sonics work together, one spins under Catfish's legs, sending him airborne, while the other spins into him from above. As soon as they stop, Hangry body presses and grabs one of them as he rolls away, while Mangey dives down onto the other robot, which dodges the attack and grabs hold of his arm. As Mangey bites the robot's hand, it throws him away into the crystal wall, generating a little purple dust cloud. Mangey reappears and snarls as he charges back at the robot. Grim Rouge flies towards Dread.

"Avast, ye flying abomination!"

Dread jumps up and hits a Grim Rouge with his sword. He lands and crouches down to brace himself. A group of denizens - including Denizen 1998 - yell and deploy their weapons towards a group of two Grim Knuckles. The robots jump up high and punch the ground simultaneously, generating a shockwave which sends the group flying. Grim Birdie takes out two Eggforcers and shoots lasers from its mouth. It then dives its way towards Sonic and Gwen - standing on a crystal. The Yolkomotive destroys it with a laser, leaving Sonic and Gwen intact.

"Take that, bird brain!" Dr. Done-It said.

Dr. Babble takes on a group of two Grim Amys. It punches one with a right arm and slaps the other one away. He jumps up high and pummels a Grim Rouge. On the Kraken's bridge, where Black and Rusty on the controls are on patrol, another Grim Rouge flies across Black. Another one lands on their bridge and engage in battle. Black slams the Alpha Grim into the wall and forces it off.

"Get off, ye winged devils!" Black Rose ordered.

She hits another Grim Rouge with her sword, while another Grim Rouge punches Rusty, causing the Kraken to lose control and hit the Yolkomotive, with Dr. Done-It inside the cockpit feeling the sudden bump.

"Dagnabbit! Watch where you're going, you lousy kids."

The Kraken reappears beside the Yolkomotive.

"You watch where you're going, you squid-faced eel!"

Black and Rusty are seen fighting off another group of Grim Rouges. Sonic and Gwen watches another Grim Rouge take on an Eggforcer.

"That all you got? Eat plasma, noobs!" Dr. Don't said.

The Eggforcer fights off several robots. It shoots lasers, which land next to Knucks.

"Watch it!" Knucks shouted angrily to Don't.

"Don't hate the player, hate the game." Dr. Don't said to the viewers.

As he lands, he sees something up ahead in horror. He ducks down, dodging a charging Eggforcer. He watches Knucks take on a Grim Amy. He dodges its hammer with his leg, but gets clobbered by the second shot, which sends him flying towards Dr. Deep's mech, knocking them both out. They argue at one another.

"Get off me, you crimson porcupine!" Dr. Deep growled.

"Say please, you hipster cyborg." Knucks argued back.

"Why can't we work together? The fight's just starting and we're already losing." Sonic said as the battle goes on around them.

Gwen looks down at her body see her hands and feet are covered with shards with worry. Nine looks down with pride.

"Look at them, so dysfunctional. They won't last long."

He sees Sonic and Gwen combating a Grim Knuckles.

"What are you waiting for, Sonic? I'm right here. And I got to find a way to fix Gwen."

He then watches his own counterparts Sails and Mangey combating a Grim Sonic, working together to knock it out. He continues staring as they drag the robot away in front of him.

"There is only one me. Time to give Sonic a little push. Grim Troopers, go after the foxes!" Nine said as he draws his mechanical tails.

The Alpha Grims stop and retreat to a safe distance.

"Why are they stopping?" Knucks questioned, wanting to fight, punching his fists together.

"Perhaps they've concluded that they're beaten." Dr. Deep answered.

Dr. Deep spins and falls. The Grim Robots swoop across the landscape. Sonic and Gwen watch on as they approach towards Sails and Mangey, building a contraption using robot parts.

"Oh... no." Sonic dreaded.

"Mangey, Sails!" Gwen called out.

They run and skate towards them. Mangey turns back in fear as the Grim robots approach them at full speed. Sails picks up the weapon they've been working on.

"Let's hope this works!" Sails said, throwing the weapon towards the Alpha Grims.

As the scene slows down with the device in mid-air, it explodes, with blue electric shockwaves battering the Grim robots. The blast appears in-front of a running and skating Sonic and Gwen.

"No!!"

They vanish while a giant purple smoke cloud sweeps through with robot parts flying across. Sonic and Gwen - being forced by the explosion - are knocked down to the ground with a plume of smoke. Their eyes twitch. They sit up and look ahead in despair.

"No..."

A massive crater has been formed surrounded by a plume of smoke, with the exploded device in the middle and scattered with robot parts. Nine looks down at what happened, with a slightly miserable look, before reverting to a threatening look.

"Fools. They sacrificed themselves for a minor victory on the battlefield. Remaining forces, pull back and let Sonic and Gwen come to me." Nine said, ordering on the reflector.

The remaining Grim robots follow Nine's orders. The Rebels run over to a desperate-looking hedgehogs.

"Mangey, Sails, are they..." Rebel asked worried.

"I wasn't fast enough." Sonic said in despair.

"And we could have saved them." Gwen said also in despair.

T'Challa comfort her by purring and nudging her head with his cheek for her to feel soft touch.

"It ain't your fault." Knucks said, frowning.

"Yes, it is. All of it is. You wouldn't even be here if it weren't for me." Sonic facepalmed with Gwen was crying in tears.

Dr. Deep arrives and reminds them.

"Which is exactly why you need to lead us to that blasted fox. Once the Chaos Council controls the Prism..."

"If you think we're gonna let you anywhere near the Prism, you're even dumber than you look." Rebel glared.

"We gotta draw Nine out of his hole and take the fight to him." Knucks added.

"Sonic should use his speed and Gwen could use her powers to get the Prism and cut off Nine's power." Rebel suggested.

"So the hedgehogs will wield the power? Preposterous!"

"Better them than you!"

"In case you haven't noticed, we are losing."

While the argument is ongoing, Sonic and Gwen gets up and looks at the floating tower in the citadel. zooms in to Nine, who grins back at Sonic, but sad for Gwen in secretly. Sorry and Gwen grimaces and growls at him.

"Here they come." Nine said.

Sonic and Gwen clenches their fists.

"Sonic, Gwen, what are you two going to do?" Rebel asked suspiciously

"I wanna take the fight to Nine so bad it hurts, but if Nine gets his tails on me, it's game over for all of us." Sonic said.

"The only way we win this is by working as a team, to save everything, together." Gwen continued.

Their allies gather.

"Rebel, what do we do?" Sonic asked.

"You're asking her for advice? We're geniuses. Do you know how many years I spent in college?" Dr. Deep asked in disbelief, causing Rebel's ears to droop.

"Even though they've been out-manned and out-gunned at every turn, Rebel's been leading a revolution against you for ages. That takes strategy." Gwen explained.

Dr. Deep growls in anger.

"Patience, Doctors, our time will come soon enough. Let the fools have their moment." Mr. Dr. Eggman said.

"Uh, you know you're on speakerphone, right?" Dr. Don't said noticed.

"Oh, no. Uh-oh. Sorry."

Phone beeping sounds play in the background. The Rebels shows unconvinced looks.

"So any ideas? Because the mustache is right, we're getting destroyed out here." Sonic asked again.

Sonic and Gwen looks up at the tower again.

"Sonic and Gwen's waiting?" Nine wondered.

Nine angrily threatens his mechanical tails at them.

"They've never waited for anything in their entire life."

But looks worried for Gwen, because he's afraid he was about to lose her again just like Iris once.

"Gwen..."

"Nine is the key. We need to get him off balance and unfocused. I propose a three-pronged assault. First prong of the plan is a flanking maneuver. We'll split into teams that are used to operating together. The Pirates heading to one side of the Citadel, the Scavengers assaulting the other." Rebel explained the plan.

To the citadel, then several screens of the Scavengers and the Pirates working together. They then climb up to the top of the citadel and approach Nine. The energy beam malfunctions, leaving Nine pounding his fist on the ground in devastation.

"Their objective, avoid combat wherever possible, breach the top of the Citadel, and find a way to plug that hole, stopping the energy beam and cutting Nine off from the Prism. Second prong, the airships, each of which will provide support for the ground forces."

The second prong shows the three airships and Birdie. The airships deploy their weapons. The missiles strike down and knock out some Grim robots. Viewing from the ground, The New Yoke City group, the Chaos Council mechs and the Eggforcers run across the middle, taking out the Grim Robots.

"Keep Nine's assets looking over their shoulders. The more they're focused on you, the less they'll be on the rest of us. The New Yoke City groups will go right up the middle. We're the most experienced fighters and we'll have the Chaos Council mechs with us. We'll draw the most attention from the Grim-Bots."

"You're using us as common foot soldiers? How dare you? We are your betters!" Dr. Deep questioned, turning to Red and just staring at her in confusion.

"Then you'd better get with the program or you're gonna find out how much worse things can get." Squad Commander Red threatened.

"Uh, who are you? Seriously, I have no idea who you are." Dr. Deep questioned.

She looks away and folds her arms.

"What about his robots?" Thorn asked.

"We don't have to defeat all of them, we just have to hold the line long enough for someone to cut Nine off from the Prism." Rebel answered.

"It all makes sense, but what about me and Gwen?" Sonic questioned.

"Remember, Nine's only got eyes on you two. Hang back and keep his focus. This will allow the Pirates and Scavengers to sneak to the top of the tower." Rebel said.

"So you're keeping us out of the fight?" Gwen questioned.

"Not out of the fight. You'll be scouting, coordinating, and relaying messages. Also we just don't want to lose you too" Rebel said, touching her shoulder.

Gwen gives it a thought.

"And bashing a few bots along the way, right?" Sonic imitates combat moves and pointed at her.

"I'm counting on it, we all are. Once Nine doesn't have the power at his fingertips, you'll have your window to take him out. Until then, bide your time."

"Never really been one to bide my time, but makes sense." Sonic said.

"But also make sense, because I'm halfway to become the prism, and I don't want to risk it." Gwen added, which Sonic nods.

"Okay, everyone, you heard Rebel. Let's go win this together!" Sonic said.

Sonic and Gwen's allies cheer. Nine looks down on them in disgust, and points his mechanical tails at them.

"I don't know what game you're playing, but I..."

The citadel rumbles. Nine almost falls off and wonders what's going on.

The Yolkomotive approaches and fire four missiles. One of them hits the Citadel that nine is standing on. Nine yelps as he stays on his feet, and looks angrily at the mothership. It rotates and two of its guns point down towards him. They generate a large orb and shoot a giant laser which hits the ground and knocks out several Alpha Grim Robots. The laser fires up at the citadel and destroys the outer wall.

"The outer wall has been breached. The Mothership is pulling back to conserve energy." Mr. Dr. Eggman said, putting his feet up.

Nine looks down at the black plume of smoke and the already penetrated outer wall. He growls in anger.

"Enough! All forces, attack!" Nine yelled, drawing his mechanical tails in a pinwheel shape.

He fires green lasers from five of his tails to duplicate more Alpha Grim robots. A large group approach and attack Sonic and Gwen's team.

"Here they come." Knucks warned them.

Dr. Deep takes out a Grim Knuckles. Rebel Rouge struggles with a Grim Rouge. Renegade Knucks throws a Grim Amy away from him. It almost gets hit by Dr. Don't's Eggforcer's bullet.

"Alright, let's do this!" Dr. Don't screamed out.

https://youtu.be/8YAoh5lMpow

The background music coming on as the battle begins for hedgehogs allie's against Nine's robots. And ends with Nine building something bigger with prime energy.

Dr. Don't's Eggforcer punches a Grim Amy on the head and hammers the fist down to knock it out. It flexes its arms. Cut to the Yolkomotive, where two Grim Birdies peck on its front windshield.

"Get off, you wretched creatures!" Dr. Done-It screamed and started flicking his arm.

Rusty shoots two bullets from the Kraken and breaks both Birds. The Kraken hovers in-front of the Yolkomotive.

"Well, don't expect a thank you." Dr. Done-It said.

"Don't expect a you're welcome." Rusty Rose copied.

"That there be some fine blasting. Let's go find some more trouble." Black Rose said

Dr. Don't war cries in fury. Dr. Deep takes out a Grim Knuckles while Knucks smashes another one. Dr. Deep hits another Grim Rouge. Knucks defeats a Grim Sonic.

"Yeah--"

He was cut off by Grim Knuckles running in and tackling him, punching him repeatedly until Dr. Deep takes it out.

"Thanks."

"It was easy. I was fighting your robotic double, obviously the weakest of the lot." Dr. Deep said.

"At least I have a double!" Knucks protested, offended as Dr. Deep walked away.

As Knucks goes after Dr. Deep; in the background, the Scavengers (Prim Rouge, Hangry Cat, T'Challa and Gnarly Knuckles) initiate their cover plan. They run beside some crystal walls. As soon as Prim halts them, they bump into each other. After a moment, they continue onward. They hide beside another structure. Prim peeps through while T'Challa using cat stealth like.

"Okay, we're getting close." Prim whispered.

Hangry grunts as he falls on his face.

"Who put that rock there?" Hangry questioned.

Gnarly and Prim immediately shush him and T'Challa growls him.

"Keep low and out of sight." Prim whispered.

Prim's ear peps up as a Grim Birdie squawks and flies across. A Grim Amy dives towards them with a hammer attack.

"Look out!" Prim warned.

She flies up, dodging a Grim Birdie. Hangry picks up the rock.

"It's just one, we can take it." Gnarly said.

As Grim Birdies squawk again, two Grim Amys jump from the top of the structure and join their counterpart, preparing for battle as a trio. Hangry starts shaking in fear.

"Ah, coconuts! Charge!" Gnarly said.

Hangry and Gnarly initiate battle. Hangry hits the first Grim Amy with the rock while Knucks slams it down. The second Grim Amy hits Gnarly, causing him to yelp. Froggy jumps onto the third Grim Amy's head. While Prim dodges a Grim Birdie, T'Challa fights a Grim Birdie by jumps and pounces to the sky. Thorn's Birdie knocks it down. Thorn dives down and intercepts a Grim Amy's hammer with her hammer, while Prim flies down and carries Gnarly to safety. Hangry hangs up a Grim Amy and punches it away, sending it flying. As the rest of the scavengers watch on, Thorn takes on a Grim Amy. As it jumps up, Birdie body presses it and takes it down.

"Go, we've got this!" Thorn told the Scavengers.

"Keep moving, Thorn Rose can take care of herself." Prim said.

The rest of the Scavengers run towards the Citadel. Two Grim Birdies land opposite Thorn and Birdie, each carrying a Grim Amy.

"Bring it!" Thorn yelled.

Gwen arrives and lures the Grim Birdies towards her.

"Yoo-hoo, over here!"

Gwen skates, the Grims go after her. She side steps to dodge bullet attacks and spots Dr. Babble up ahead.

"Incoming!" Gwen warned him.

Gwen starts boosting, and skates under Dr. Babble's legs. Dr. Babble smashes a Grim Birdie just as the Grim Amy leaps onto the mech's head. It jumps to dodge an arm attack, but Dr. Babble punches it and breaks it. The other Grim team go after Gwen. Gwen lures them towards the Eggforcer, in which their bullet breaks the Grim birdie apart. The Grim Amy leaps and lays a hammer attack on Gwen, but Knucks was there to punch and break it. Gwen skates behind the structure where the pirates along with Sonic had been hiding. They act stealthily and tiptoe slowly towards the Citadel. However, more Grim Bots attack the unaware members, leaving Batten alone. Batten Rouge flies down, ready to attack, but is slammed into the wall by a Grim Rouge.

"Hey, Ro-Bat!"

In slow motion, Gwen use her giant fist whip she summoned from her ruby necklace to punch a Grim Rouge in the face. Back to normal speed, Gwen brakes to a halt.

A Grim Sonic throws Jack on top of Catfish, knocking them both over. In front of our view, Sonic battles and kicks his Grim counterpart.

"We needs to go!"

Jack and Catfish start running. As Sonic takes out the Grim Sonic, the Grim Rouge flies into him, but he dodges. As Batten, Jack and Catfish watch on, the Grim Rouge slams Sonic into the wall, but Sonic recovers quickly and holds it into the wall.

"Keep moving!" Sonic yelled As Gwen came back to them.

As the pirates run onward, the Grim Sonic gets up. The Pirate Froggy croaks.

"Huh?" Catfish stopped and turned back.

The Grim Sonic starts spin-dashing towards Sonic. In slow motion, Catfish dives with his chest to block the spin attack, but is flown back, helplessly bouncing onto the ground, incapacitated, along with Froggy. Sonic runs over to check on him along with Gwen.

"No!" Sonic yelled in despair.

​​​​​"Catfish!!" Gwen gasped in horror.

The Grims walk closer to Sonic and Gwen.

"Hang on, pal, I got you."

"Incoming!"

Dread takes out the Grim Rouge and encroaches the Grim Sonic.

"Argh, these metal chickens be a pain in me backside." he glared before seeing the downed Catfish. "How's the lad?"

He, Gwen and Sonic help Catfish up.

"Catfish, you okay?" Sonic asked with worry.

"Never better, my good lad. But who is this Catfish you speak of?" Catfish said raising his eye patch, opening his eyes and donning his hat.

Sonic, Gwen and Dread gasp at each other. Nine watching on.

"They're sacrificing themselves for Sonic? Why?!" he asked, turning around and clasping his hands. "Hmm, time for a new strategy."

He looks up at the beam of energy in the dome.

"Something bigger."

Nine draws his mechanical tails out and points them, generating lasers at the energy beam.

He flies up while he continues generating, the dome repeatedly changing colors. The Paradox Prism starts shaking. He grunts louder as a spiral of electricity swirls around the beam. The remaining Alpha Grims run back towards the Citadel. Knucks punches a Grim Sonic. As two Grim Knuckles walk slowly towards him, Dr. Deep appears behind them and slashes them away. On board the Mothership, Mr. Dr. Eggman watches over the radar.

"What? His forces are getting weaker. It appears he's redirecting power to the Citadel!" Mr. Dr. Eggman gasped.

On the ground, Sonic, Gwen and Dread help walk Catfish along.

"This isn't working. I should've gone straight to Nine when I had the chance." Sonic said as Gwen and Dread sits Catfish down before Dread runs off.

"Cheer up, Sonic, we're doing alright out here." Gwen said.

The fighting's still ongoing in the background. Rebel takes out a Grim Robot. Thorn - carried by Birdie - hits another Grim robot with her hammer. Dr. Babble giggles as he repeatedly slams down another Grim Amy.

"Yeah, we are. We're holding our own." Sonic agreed. while Gwen smiled.

An Eggforcer shoots another Grim robot.

"Don't get comfy. This isn't even close to done. The Mothership is reporting a surge of Prism energy at the Citadel." Dr. Don't moves aside and points towards it.

Nine continues gathering prism energy, grunting harder. His mechanical tails glow white, he yells as he deploys the energy by shooting seven green lasers down to the front of the citadel. The dome starts shaking as the lasers make contact with the ground. Dr. Don't, Sonic and Gwen flinch in shock. A green vapor spews out.

"Missed by a mile, what a noob." Dr. Don't said.

"Nine doesn't miss." Sonic said.

"That means, he's planning something big." Gwen added.

Nine - with his tails still spinning - looks down at the vapor and groans, putting his head in his hands. He collapses onto the ground. He looks up at his enemies, grinning hysterically. The Scavengers run towards the citadel and discover the vapor. They halt as the vapor ignites into a purple flame. The dome rumbles again. The scavengers then run along the building's structure. The head of a giant robot, with long ears, rise up from the vapor. Prim halts and gasps as she notices what's coming, along with the other two Scavengers. The giant metallic robot, resembling Big the Cat, fully emerges from the ground. It steps forward.

"Nooo..." Dr. Deep gasped.

Dr. Babble smiles and laughs.

"I told you that giant cat zombies were real!" Gnarly exclaimed, scared.

"Not Big, anyone but Big!" Sonic said in horror.

"HOW COULD YOU, NINE?!" Gwen exclaimed, anguished.

"You left me no choice." Nine threatened.

Grim Big lets out a yell which sends shockwaves causing Sonic to flinch. It deploys one homing missile, which the camera cuts to a close view of, resembling Froggy. The missile flies at Sonic - in slow motion.

"Froggy?!"

The missile explodes as it makes contact.