In the skies of Mobius a large metal tube called an escape pod is seen falling towards the surface and hits the ground with huge force, it then opens up then a black male hedgehog with red stripes named Shadow walked out holding his side, all beat up he looked around for any signs of life but sees nothing but forest, he eventually passes out from his wound, the last thing he saw was a pink figure running towards him but it was too blurry to see any other type of detail to the figure. Shadow started dreaming about everything that happened before he got into the escape pod, he was on a rescue mission to save an yellow-orange male fox named Tails. Shadow rushed through the halls destroying everything in sight while making his way towards the bridge of the ship where a bald headed male with an orange mustache, red lab coat and black pants named Dr. Robotnik was waiting.
"Sh-Shadow? But why?" Dr. Robotnik asked.
"Because, Doctor, I realized my true purpose," Shadow answered before walking towards him.
"Sleet, Dingo, stop him!" He shouted before two mobians appeared in front of him, one being a male grey wolf with red body armor, purple cape and boots and a yellow emblem named Sleet and a male orange-brown dingo in green shorts, purple glasses and golden leg armor named Dingo run towards Shadow but get beat up and tossed in front of Dr. Robotnik.
"It didn't work, I should have known," he said in defeat.
"Where is he?" Shadow asked him.
"Okay fine," he said pushing a button and a giant tube comes down revealing the yellow two tailed fox inside it who also had some white fur.
"Now let him go," Shadow demanded.
"Okay okay, just let me come over here and..." Dr. Robotnik said about to press a button on the dashboard behind him but gets stopped by a very fast force that almost hits his hand, he looks to see Shadow holding a pistol at him.
"No tricks Doctor, you even try that and you're gonna be dead before you even hit the floor," Shadow said walking closer to him.
"Fine," Dr. Robotnik said pressing a button that releases Tails from the tube and gets grabbed by Shadow while Sleet and Dingo get up and sees that Shadow was wounded.
"Well well well," Sleet said with an evil grin "looks like our friend here got himself a little bruised up."
Shadow notices the wound on his side.
"Shoot," he said before running for the escape pod and gets knocked in by an explosion, he looks at Tails to see that he was okay and hits the launch button on the dashboard, Shadow then woke up to find himself on a hospital bed, next to him was a female white bat in a black jumpsuit named Rouge sitting next to him with her eyes half closed but then notices that Shadow was awake.
"Well look who finally decided to wake up," she said with a smile on her face seeing Shadow get up.
"How long have I've been out?" He asked.
"Almost two days" Rouge answered.
"Almost two days?" He said surprised.
"Yep, you were out cold when we found you, that cut of yours didn't look pretty," Rouge said pointing out the bandages on Shadow's gut.
"I'm pretty sure it's recovered by now," Shadow said feeling where his wounds at.
"Let's find out," Rouge said removing the bandages to reveal nothing
"Hey you're right, there's nothing left of it," she said surprised as Shadow got out of the hospital bed.
"What happened anyway?" Shadow asked.
"Don't you remember? You were on a mission to rescue Sonic's little brother Tails when you got wounded," Rouge explained.
"Did that really happen?" He asked.
"Oh no, he must have had memory loss" she realized.
"Okay, we're gonna have to take it easy for a few days until you get your memory back."
Rouge grabbed Shadow but he gently pushed her back "That won't be necessary, I need to figure out what happened," Shadow said walking out the door the last thing he could remember was seeing a pink figure.
"Who was that?" He asked himself as the scene played over and over again in his mind.
"Hey Shadow take it easy" a doctor said stopping him.
"I need to figure out something, where's the exit?" He asked.
"Umm, just take the elevator to the main lobby," the doctor said before Shadow continued walking.
"I'd consider checking out first!" The doctor said as Shadow entered the elevator.
"So who are you exactly looking for anyway?" Rouge asked standing next to Shadow which startles him.
"How did you get in here so fast?" He asked.
"I snuck past you when the doctor stopped you," Rouge answered before Shadow let out a small hm and answered the previous question.
"I'm looking for a pink figure, that's the last thing I remember," he said.
"The only two people I can think of that are pink are two girls, one named Sonia, the other named Amy," Rouge said.
"Those names sound familiar," Shadow said to Rouge.
"So who first? It's totally up to you," she asked
"We'll try Amy first," Shadow said as the elevator stopped on the ground floor, they both walk out of the hospital and head for Amy's place, with Amy who is a pink female hedgehog wearing a pink dress with pink boots and white gloves, she was busy cleaning up her place when she heard the doorbell ring.
"I wonder who that could be?" She asked herself as she went over to the door and opened it to see Shadow and Rouge standing there.
"Shadow? Rouge? What are you doing here?" She asked.
"Well Shadow here is searching for someone," Rouge answered.
"And who might that be?" Amy asked curious.
"It was someone pink" Shadow answered.
"Do you remember where you were when Shadow attacked robotnik's ship?" Rouge asked.
"Well I was saving Cream from Robotnik's forces along with Mina" Amy answered after thinking for a second.
"Did you by any chance see an escape pod?" Shadow asked.
"No I didn't" Amy answered.
"Then that leaves this Sonia girl," Shadow said before leaving.
"Umm, good luck!" Amy shouted as Rouge followed him. Shadow and Rouge later stop at a coffee shop "So who is Sonia anyway?" Shadow asked.
"She's Sonic's sister, a good natured kind of girl but a bit selfish at times," Rouge answered.
"Hmm, So where do we find her?" he asked.
"I don't really know" Rouge answered. "They abandoned their little hub after they reunited with their mother."
At an unknown location a male blue hedgehog with red shoes with a white stripe and white gloves named Sonic is seen practicing with his guitar when a female voice calls him.
"Alright I'm coming," he said putting away his guitar and running down the stairs to a female purple hedgehog in a white queen like dress and a red cloak, her name was Aleena, Sonic the hedgehog's mother.
"Okay The Oracle of Delphius is waiting for you, I'll get your brother and sister" she said before walking away while Sonic rushes into a room to see a figure in a black cloak that comes into the light to reveal himself to be a reptilian anteater named The oracle of Delphius.
"Good to see you again, Sonic," he said.
"Good to see you too I guess," Sonic said to him.
"What seems to be the problem?" He asked the Oracle of Delphius.
"We have to wait for your brother and sister first," he answered before three other hedgehogs enter the room one a male green hedgehog with a red vest and red shoes named Manic the other being a pinkish purple hedgehog with a sleeveless turtleneck, a purple skirt, purple shoulder high gloves, purple boots with red tips and a golden belt with white opus in the middle, her name was Sonia.
"Good to see you're all here," The Oracle of Delphius said walking over to his table.
"So what seems to be the problem?" Sonic asked.
"I'll show you. The three of you are in great danger, Dr. Robotnik has made a discovery, an ancient lizard with power that outmatches yours by the name of Kako. Kako has been awaken by Robotnik and plans to find all of us," The Oracle of Delphius explains showing an orange male Komodo dragon in a green aurora above him.
"How powerful are we talking about? On a scale of one to ten," Manic asked.
"Much worse. Anyway, if he finds us, there will be..." The Oracle of Delphius explained before Sonic interrupts.
"No force on Mobius that can stop him," everyone looks at him "what? I saw it coming,"
"What do we have to do?" Queen Aleena asked.
"Until I can find a way to stop him, we need to keep our heads down, which means we can't be out so often," he answered.
"Can't be out so often? What about our friends?" Sonia asked.
"They're might be nothing we can really do, if he gets one of us, that's it for Mobius" The Oracle of Delphius answered.
"Nothing we can do? What about Mina? What about Tails?" Sonic asked.
"Sonic I don't want to argue, we don't have a choice, we don't have anything that can possibly beat this guy," The Oracle of Delphius said. Meanwhile Shadow the hedgehog is seen walking to a small hub in the middle of nowhere and knocks on the door but no one answers.
"Hello," Shadow said.
"Like I said, they abandoned it after they found their mother," Rouge said before Shadow opens the door and enters the hub to see no signs of life.
"You're right, there's no one here," Shadow said before leaving the hub. "Do you know where they went?"
"Manic said they were heading east somewhere," Rouge answered.
"That where we're going then," Shadow said before heading east.
"He's pretty determined," Rouge said to herself before following Shadow, meanwhile Dr. Robotnik is seen talking with Kako.
"So you are here looking for Sonic and his siblings correct?" He asked.
"That's right, with their power I can rule this planet" Kako explained.
"Your already powerful enough, you can easily take them no problem, what more do you want?" Dr. Robotnik asked.
"To be a god beyond gods," Kako answered.
"What's in it for me?" Dr. Robotnik asked.
"You'll have the entire planet to yourself, but under one condition, you make the citizens of this planet worship me," Kako answered causing Dr. Robotnik to be silent. "I'll let you give it some thought."
Back with Shadow and Rouge who are outside of town.
"Look I don't get why you're so interested in finding Sonia" Rouge said getting tired of searching.
"If you're getting tired then why don't you head back?" Shadow asked.
"Then I guess I will," Rouge said flying away while Shadow goes and leans up against a tree and shuts his eyes.
"Shadow?" A female voice said as Shadow looked to see Sonia standing on the path before walking over to him "good to say you're okay,"
"Thanks," He responded.
"So what are you doing all the way out here?" Sonia asked then Shadow stands there silent looking at Sonia as an image of a human girl with blond hair appears in his head next to her before vanishing.
"I'm, looking for someone," he answered after a minute.
"Oh, who might that be?" Sonia asked.
"A girl," Shadow answered.
"Ooh, somebody's got a love interest," Sonia said teasing Shadow a little.
"This is serious, she was the last thing I saw before I past out," Shadow explained.
"Oh, well Shadow, that was me, why does that concern you" Sonia said after realizing what Shadow was talking about.
"Because all I wanted to say was thank you, now I can get my memory back," Shadow said before walking away.
"Shadow wait," Sonia said before walking in front of him "maybe I can help you, after all I'm not really doing anything for a while,"
"I don't see why not," Shadow said before him and Sonia walk off with Sonic watching in the bushes.
"Shadow and my sister? This isn't right" he said before getting out of the bushes and following them from a distance.
"So Shadow, is there anything you remember besides me finding you?" She asked.
"From what Rouge told me I attacked Dr. Robotnik's ship and rescued Tails," Shadow explained.
"Oh yeah, Sonic wanted to thank you for that," Sonia said.
"Hm, I thought he claimed me to be dangerous," Shadow said.
"He did but if it weren't for you, his little bro as he calls him would have been a robot," Sonia explained.
"Never thought I'd see the day where he'd be nice to me," Shadow said surprised but not showing it.
"You don't seem surprised, I expected you to be since you and him don't get along most of the time," Sonia said.
"I don't get surprised that easily," Shadow said in a dark tone.
"Oh, well I didn't really know that" Sonia said.
"Do you know anything about me?" Shadow asked.
"Not really, all I do know is that unlike everyone else you were biologically made," Sonia answered.
"Hm," was all he said, Sonic watched in the bushes.
"What are you doing?" Queen Aleena asked startling Sonic.
"I was doing nothing," Sonic lied.
"It looked like you were spying on your sister and Shadow," Queen Aleena pointed out. "what do you have against him anyway?"
"He's dangerous, I've seen what he did to my brother Manic the first time we encountered him," Sonic tried to explain.
"You have to understand Shadow isn't helping Robotnik anymore" Queen Aleena said
"That still doesn't make him an ally," he said before looking back to see that Shadow and Sonia were gone. With Shadow and Sonia who are in town.
"So where should we start on getting your memory back?" Sonia asked.
"Well we can probably start by figuring out what I was made for" Shadow said thinking.
"Well you helped out Dr. Robotnik the first time we encountered you and you injured our brother Manic," Sonia explained all she knows about him.
"I see, sorry about your brother, even though it was me who did it," Shadow said.
"That's okay, it's all in the past now" Sonia said with a smile on her face, Shadow just lets out a small hmm before they run into Tails.
"Hey Sonia!" Tails called out rushing over to the both of them.
"Hi Tails, what are you up to?" Sonia asked.
"Well I was on my way to pick up some supplies for my newest invention until I saw you and Shadow" Tails answered.
"What kind of supplies?" Shadow asked.
"Some new tools, a generator or two and some extra parts for stability," Tails explained.
"Sounds like an interesting invention," Sonia commented as Shadow watched the two talk some more. Meanwhile Kako rips open the wall of Sonic, Manic, and Sonia's old hub and looks around while Dr. Robotnik tries to talk to him, Kako stops to see a picture of Sonic and his siblings and picks it up, one particular hedgehog which was Sonia catches his eyes
"This hedgehog, that's Sonia isn't it?" Kako asked Dr. Robotnik holding the picture up to him and points at her.
"Yes it is, why?" Dr. Robotnik asked.
"I saw a girl that looks like her, I assumed it was someone else but then this medallion she wore caught my attention" Kako explained.
"That medallion is the source of their power, they each have their own and it transforms into an instrument, like Sonic's medallion is a guitar, Sonia, the one you have interest in is a piano," Dr. Robotnik explained.
"Sonia, this will be our main target, we can use her as bait to lure the others, it'll be a snap" Kako said with an evil grin on his face.