Hey guys another chapter for this story and I am working on the chapter for DSK, my Naruto fiction, but I do have a request, I need a beta reader for these two stories, Battle of the Worlds and Naruto DSK please PM or leave a review for it. Thanks guys.

Disclaimer: I don't own any DC or Marvel Characters, they belong to their respective comics, universe and owners.

(Arrowverse Earth-1)

Central City

Oliver didn't know how it started. He was going to visit Samantha and William in Central City and he was thinking off meeting Barry once he reached there. Imagine his surprise when he found out that he now has a new sidekick. So anyways he went to meet Sam and through her, his son William. He didn't like how he isn't allowed to tell him that he is his father, but he is in no place to ask her of anything, considering complicated his life is, and also his relationship with Felicity is at an all time low, but even then he somehow managed to get her to come with him to meet his son William and here they were now, both worried to there core considering that they now had a worried Sam an equally worried Felicity and pissed of Oliver that was glaring at the note that was in his hand.

Your son is with me, want him , come find me. - Slade.

Slade Wilson a.k.a. the Deathstroke, one of the most deadly mercenary and assassin and the guy has a personal vendetta of making his life hell. Now he kidnapped his son, his son who didn't even know that he was his father, how the hell did . But if he had him than he was going to get him back, but there was something in the back of his mind that Damien was also helping him. And if his two of the most dangerous villains were together then he going to need that big of an help to help with his problem. He quickly pulled out his phone and called his team to get them here and after getting the team he called the one person who he knew would help him no matter what.

"Barry." Oliver said in his phone and remained silent for a moment "I need your help."

After Barry got the call from Oliver, he was quick to rush in to the place he gave the address off after telling Joe to get Peter to the house, and then flashed to the adress, which happened to be the same house Oliver son and his mother resides in.

"Oliver?" He knocked on the door which was then opened by Oliver with injured Samantha in the back crying, being consoled by the equally distraught Felicity. He then took in the appearance of the home, it looked like someone decided to storm this place. There were things lying on the ground broken vases, flowers lying around, and there were signs of struggle.

"What happened here?" Barry asks Oliver as he led him inside the house. Oliver instead of saying something just handed him the same note he read moments ago. Barry read the note and his eyes widens as he understood the message that was in there.

"How?" Barry asks again "isn't he on Lian Yu" he paused as he tried to remember what actually happened to Deathstroke "You left him there."

"I don't know." Oliver said quietly as both Sam and Felicity looked towards them "but I think that Damien Darhk is helping him."

"You mean that evil magician guy?" Oliver nodded his head.

"Can you find any clues here?" Oliver asks again and Barry started looking around for any clues that were left here. He then went upstairs to check anything that would lead to know his location or any lead that would lead to Deathstroke.

"I can't find anything, Oliver." Barry said as he came back downstairs after using his speed to search through the place. "I can bring my kit here to check for any fingerprints or any other clues."

"Okay." He then turned to look at Samantha and Felicity "take us to S.T.A.R labs, all of us quickly."

"All of you?" Barry asks as he then turns to look at Samantha with Oliver following his gaze.

"Yes" he looked where the mother of his child and his girlfriend is "All of us. I don't think anyone is safe here right now so I will take them to the place where we are together not alone we don't know if someone else is going to come here to harm her or finish the job." Barry nodded his head and saw how Oliver flinched a bit regarding Sam as a job. "And the only place with enough things for us to work is at S.T.A.R labs not anywhere else, so please, I will make sure that she doesn't tell anyone else. Please Barry just this one time, I need your help." Barry caved in, this was the first and only time Barry had seen his freind like this, he might not know what it feels like a father who nearly lost his son but as a son he knew what it feels like to lose his parents, and considering that William was forcefully taken, Barry just nodded his head as both of them went near the two woman.

"Felicity" Oliver called out to her as both her and Sam turned to look at him "Sam wear a jacket, we are getting out of here."

"I am not going anywhere till I find my son Oliver!" Sam nearly yelled out to him.

"And we are not, we are going to a place where it might be easier to find him, but by staying here we would do nothing more but increase the chances of putting both you and William in danger." Oliver said to her "And please remember that he is my son too." With Oliver moved back as Felicity decided to wear the coat she brought with her and Sam went to get a jacket. Barry reached them after putting his phone down.

"I called Caitlin." Barry said to them "She will be there to treat the injuries, I will then come back here with my kit to find more clues."

"How and where are we going?" Sam asked the three of them who just looked at her.

"Oliver, is he going to do what I think he is going to do?" Felicity asks him who just gave her a brief smile. "Wait, I don't think I am read-" before Felicity could complete her sentence she quickly flashed away from the house by Barry. Sam on the other hand was more surprised than she already was she shakily pointed to the place where Felocity and Barry once stood "Wa-was that the Flasss-" before she could complete her sentence she was taken away by the Flash and the next thing she knew that she was now inside a lab of some sorts with lots of computer and she was on a medical bed. "Shhhhhh?" She completed her sentence that she nearly left but she was more confused when a brown haired woman that was standing with Felicity came near her. "Hello" the brown haired woman spoke "I am Dr. Caitlin Snow, I am going to check on you for any injuries." The woman Caitlin said as she came near her with bandages and medicines. But before she could do anything the Flash came back this time with Oliver.

"You know the Flash." Sam stated and Oliver turned to look at Felicity, who nodded at him to follow her. Flash or Barry looked a bit uncomfortable as Caitlin glared at him from her place whereas Sam looked at him with surprise, wasn't he freind of Oliver's that came with him to meet her the first time around. "You are the Flash!" She stated again. "Yes and I will do anything in my power to help Oliver and you to find your son, you just need to trust us, okay, you can asks Oliver any question that you might have but I need to look for clues regarding where they might have taken William. Meanwhile Caitlin will help treat your injuries." Barry said and he quickly flashed away to his lab at CCPD to get his kit and then towards her house to look for clues.

(Meanwhile back with Oliver and Felicity)

"What are you planning to do Oliver?" Felicity asks already having an idea of what he was going to do and was hoping that what she thought may not be right.

"I know what I am going to do Felicity." Oliver said "I am going to tell her that I am Green Arrow."

"Don't you think that this might not be the right time to tell her this." She told him. "Her son is kidnapped."

"Who is my son too damn it!" Oliver almost yelled but reined himself "I know but I think she deserves to know why her son was kidnapped in the first place, because of whom they are in danger right now."

"And telling her right now could be a potential disaster." Felicity shot back "what do you think will happen if you told her that you are the Green Arrow, currently she has the full custody and authority over him, if she wants she could actually make it so that you wouldn't be able to see your son again."

"And what would happen" Oliver started "if she found out by someone like Slade or worse Damien, he could use her as he sees fit. I know that you don't want me too, and I know telling her now could do, but I have to tell her Felicity." He said as he hugged her "she deserves to know atleast the reason why William was kidnapped by him. And I have faith in you, you will find another way to help me with this." Felicity just embraced him and nodded her head as both then went back inside the cortex where Sam was with Caitlin who was showing her around the lab.

"Sam" Oliver called out to her as both her Caitlin turned their attention to him. "There is something that I think you should know."

"Is it related to how you know Flash and why he is your freind?"

"Well yes." Oliver said as Caitlin moved aside "I think-no I know why William was kidnapped." Oliver paused as she looks towards him.

"And why did they take my son Oliver?"

"I am the Emerald Archer of Star City." Sam was shocked and so was Caitlin, she didn't think that Oliver was going to tell her his secret identity. Sam came out of her shock and gave a laugh "is this a joke are you trying to pull my leg." She then turned to look at the woman who was his girlfriend "do you know about what he is saying?" She then turns to look at Oliver and saw the serious expression on his face "You are the vigilante of Star City." Oliver nodded his head at these words.

"But what does it has to with William?" She asks again.

"One of my enemies." Oliver started and brought out the letter in his hand "the one who left this letter, knows about my secret identity and wants make my life hell." Oliver said and Sam looked at him, the gaze which now turned into a full blown glare and out of nowhere she slapped him. There were tears at the corner of her eyes "My son is in danger because of you." She whispered and then walked away from the cortex.

"I'll talk to her." Felicity said and then turned to Oliver "you'll be okay, right?" She asks him and Oliver nodded his head she looked a bit reluctant to go but in the end she went ahead to follow the mother of her man's child the way where she left.

Now there were only Oliver and Caitlin in the lab. "Are you sure you Okay Oliver?" Caitlin asks the emerald archer.

"Yes, Caitlin." Oliver said "I am good, you don't have to stay here, you can go now."

"You do know, that this place is my second home right." Caitlin said with a smile and Oliver gave her one too.

"I know but I think you need to rest, if today's circumstances are anything to go by." Oliver said as he looks towards her "Also I don't think any of us will be of use tomorrow if we are all half asleep, so go and rest, me and Felicity will be here. Thea and Diggle will reach here in the morning with my gear so you don't have to worry about anything okay." With that Oliver went out as Caitlin gathered her things and went back go her home.

(Next day S.T.A.R labs Central City)

After searching the whole house thoroughly and trying to find any clues, Barry Allen spend his night in the lab at CCPD and still he didn't found anything of use. After waking up he quickly went to S.T.A.R labs, how grateful he was for putting his spare clothes and other necessities in one of the rooms at S.T.A.R labs, Harrison Wells-Eobard Thawne had made some rooms for people who wish to stay here, who knew he was making these many places when he built this place. Barry quickly changed his clothes and freshen up. He used his speed again to go to the cortex where Sam and Felicity yelped when he appeared there in a burst of lightening.

"I am so sorry." Barry quickly apologized seeing their expressions, annoyance from Felicity and surprised from Sam. "Hey, are you okay?" He asks her and then turns to look at Felicity to ask the same question.

"I am Okay." Sam answered as she looked at Oliver's friend, who was the Flash. "How did find out about Oliver?" She asks him.

"I saved his life using rat poison." Barry said with a smile.

"Are you serious?" Sam asks again as Felicity laughed in the background remembering how they met Barry the first time around.

"Yeah." Felicity said from behind her "those were fun times except for the moment where Oliver nearly died." She made a face when she said that.

"Hey, listen Flash?"

"Call me Barry."

"Okay Barry" Sam paused for a moment "Can't believe I know the identity of Flash, okay so Barry I saw that now had a sidekick of sorts that swings from place to place."

"Yes, why didn't you tell me that you had a new superhero in Central City?" Felicity said with glare to the resident hero of Central City.

"Well we didn't know that he was a hero considering he is from another earth." Barry fumbled with his hands moving wildly.

"Wait he is from another Earth?" Felicity asked. "There are another Earths?" Came from Sam.

"Yes and about that I need your help, Felicity, to make them some identities for as long as they are here, we still hadn't found a way to send them back." Barry said to the blonde haired hacker.

"Yeah sure, wait them there is another?" She asks again.

"Well actually no, not both of them are heroes" Barry said again to the surprise of Sam and Felicity, "him and his freinds came here because of a breach by accident and the breach from this earth to theirs is closed and Cisco did tell us that it will extremely difficult to actually find a power source that could power the breach." He paused as he remembered that both of them are stuck on this earth without any proper way for them to go home.

"I would still like to meet them."

"We would like to meet them too." Oliver voice came from behind him and Barry stiffened remembering who actually was Spider-Man and what Oliver could do to him if he found out who actually is he, and he can't eve hide that from him, because he will find out and then it won't be pretty for him, where are Caitlin and Cisco when you need them. He turned to look at Oliver and got more surprised when he saw both Thea and Diggle with him.

Oliver had his bow in his hand with his quiver behind him wearing his leather jacket only, Diggle was behind him with his signature brown jacket and pants where as Thea was garbed in her speedy costume.

"Hey ya about that-" before Barry could complete his sentence his phone went off.

"Hey Barry." Joe's voice came from the other side as he picked the call. "Just wanted to give you a heads up, Peter decided to reach S.T.A.R labs via swinging and I have a feeling that he is looking for trouble too, can you just make sure that he doesn't bit more than he could chew, I will be bringing Ned with me, after Wally comes down from his room and leaves for college, can you call Felicity. Looks like Wally's done I will be there in a hour or so, alright."

"Hey wait Joe-listen." Barry wanted to ask about Peter but it seems like he decided to do heroic work in the City.

"Barry is there a problem?" Oliver asks as he comes behind his freind worry written all over his face and considering that his son just got kidnapped than he will have to worry about how many people does Slade and Dahrk knows about.

"Yes-well, just give me a moment, Oliver." Barry said as he went near the computer.

"Is everything okay, Oliver?" Thea asks her brother who was looking at Barry working on the computer.

"Alright let see if she still connected to the servers here." Barry said which was heard by the others. Felicity being the technician was first to ask. "Who is connected to the server?" But her question was ignored by him and decided to speak in the mic.

"Hey Karen, are you still here?" He asks and the others looked at him with questioning looks in their eyes.

"Hey who's Kare-" Diggle started but was interrupted by a voice that came in through the comms.

"Hello Barry." A somewhat robotic and feminine voice, the rest did jump from the sudden voice with Oiver and Thea tightening their grips on their respective bows. "I am currently connected every servers of S.T.A.R labs, including several satellites that has been launched and worked on by the Labs, so essentially I am here every moment of the time."

"That's cool." Barry and Felicity spoke as the rest turned to look at the two.

"Do you need me for anything?" The robotic feminine voice asked.

"Yes, can you tell me where Peter is right now?" Barry asks the voice.

"Yes, Peter is on the other side of the city helping a cat out of the tree." The voice, Karen answered.

"Okay, can you tell him to come here quickly?" Barry said as he got back from the screen.

"Very well, do you need me for anything else?" Karen asks again.

"No, just that for now." He was missing the completely surprised expression of the members of team Arrow plus one.

"Who was that Barry?" Oliver asks again.

"Is she one of those two that traveled here through the breach?" Felicity asks.

"Well she did travel through the breach but she isn't the one I was talking about." Barry answers Felicity.

"Then who was she?" Diggle was the one who asks that question.

"She is actually an A.I that was build in that guys suit." Barry told them "He asks us to allow Karen to connect to the labs server for finding routes and other things."

"He has an A.I." Felicity states with an awed expression "You guys now have an A.I."

"Wait till you have seen his suit." Barry said to her with a smile "Even Cisco said it, the suit is a masterpiece."

"Oh is it true?" She asks and Barry nodded his head.

"So when he, Peter, right, will be reaching here?" Oliver asks the scarlet speedster.

"He is nearing the labs and will reach here in at least 10 minutes." Karen spoke through the comms again. "I can show you a map and his exact location if you would want to"

"It won't be necessary." Barry said again and then he turned to look at Oliver "hey Oliver, I have to ask you something?" Barry said and Oliver nodded his head and motioned for him to continue.

"Okay so when, you meet him." Barry said referring to Spider-Man "just tried to remain a bit calm and open minded and please don't shoot me." He whispered the last part mostly to himself but the others looked at him in surprise.

"Who is he, Barry?" Oliver asks him.

"Oh, you will meet him once he teaches here." Barry said as he prepared himself and then brought out his phone clicked on Caitlin's name.

"Hey Caitlin." Barry said into his cell "where are you?"

"Hey Barry" Caitlin's voice came from the otherside "I am actually on my way to S.T.A.R labs, will be there in a few minutes, is Peter there?"

"Yes well, he is out swinging." Barry said.

"Looks like there is someone else who can't take doctors instructions correctly." Caitlin said with an annoyance "I will be there in few minutes, make sure both of you don't do anything stupid." With that she disconnected the call.

"So are you gonna tell me who this new hero is?" Oliver asks again Barry was about to speak up but the sound of footsteps turned the attention from him to the new arrival in the cortex and to Oliver surprise the person to enter the cortex was a teenager with brown hairs and eyes a mask in his hands and a spandex suit. The teen when he saw them looked at all of them in surprise and Oliver also looked around Diggle, Thea, Sam and Felicity eyes wide enough, he himself was surprised.

"Hi?" The teen called out to the gathered people as he turned to look at Barry with questioning look.

"Oliver I would like you to meet Peter Parker, also known as Spider-Man or Kid Archanid." Peter's eyes widened when Barry casually told a bunch of people his secret identity he was about to say something else but Barry continues with his sentence. "And Peter, this is my friend and superhero mentor." Barry turned to look at Peter "The Green Arrow." He missed the sudden punch from Oliver after he said that.

Hey guys, I present to all of you another chapter for this story. Oliver has also entered the story and now there are several changes from here onwards in both MCU and the Arrowverse.

Next Chapter will be introduction of Green Arrow training regime as Team Arrow and Flash tries to find the current limits of Spider-Man.

I really hope you guys are enjoying this story. And do remember to vote and comment.

Lights Out guys.