Before we get into the chapter, I want to address something. Some of you have defended me against Coolrod, which I appreciate very much. But some of you have taken it too far and have told him to go die or to kill himself. That is not okay and I will not tolerate that kind of thing happening on my behalf, especially with what is going on in the world right now. Anyone doing that is not any better than Coolrod.

Coolrod (or as my friends and I call you, Foolrod): We are the ones who are obsessed? Every chapter so far, you have left a hatful review saying how awful this story is for the crime of not being one of the stories you want to read and we are the ones obsessed? You do realize that almost all of the shows you listed have more stories and crossovers individually than Arrow and Flash do combined, right you moron? You are the one who has been bitching about Smallville on my, Aragorn and Raptor2216's stories for the past two years, yet we are the ones obsessed? Frankly, your bitching briefly made me reconsider my own plans for Smallville in my 'Two earths' series and you have made Raptor give up his plans for them. It's almost like you bitching about Smallville makes us lose any desire to include it. Weird, right? We are in a global pandemic and this is the kind of crap you want to pull right now? All you've accomplished is showing everyone the pathetic loser you are by throwing a temper tantrum like the immature brat you are. Not that Aragorn hasn't already done that in his story 'The Author roasts Coolrod'. Get a fucking life you pathetic, immature, childish moron!

Green Hal37: It is different, the stones are in different locations and the teams will be very different, as will the final enemy the heroes have to face. People turning into dust for no apparent reason, seems pretty obvious it would come from magic, especially for someone like Nyssa who was raised on stories of magic. I know, which is why Carol will not be making anymore appearances in the story. Clint becoming Ronin in Endgame is such an important moment for his character. The things we know about Clint Barton for sure is that he is a SHIELD agent, an Avenger, a family man, but what do you have when you take all that away? The answer is a broken man with a very particular skillset who has lost everything and has nothing to lose. Ronin is really the only path for Clint.

Ellie Bishop: Thank you. Glad you enjoyed it. Yep, Slade is someone who needs to see it not believe it and he will need proof before he signs on with Barry. Yep, unlike most of Oliver's relationships, there's an equal level of trust and respect between him and Slade, Mirakuru madness aside. Glad to hear it. Don't worry, I don't take anything that guy has to say seriously anyway.

Guest 2.0: It's been such a long time since I've seen 3x23 of Flash I couldn't tell you. Either way, I really just don't care enough about Gypsy to include her, so she left beforehand.

Guest: Exactly, destroying the stones creates such a plot hole. If destroying the stones was the only way, Strange would have destroyed the Time Stone to stop Thanos. Thanos was messing with a core aspect of the universe, it's like making lasagna but replacing pasta with lettuce, you just end up creating a big mess.

Cabin

Morning

A car rolled up to a cabin on a rather remote piece of land. The car stopped and Steve, Natasha, and Barry got out.

"This is the place?" Barry asked as he looked around.

"Yeah, Tony left us his address in case we needed him," Steve said and Barry nodded.

The three walked up to the door and Steve rang the doorbell. After a few moments, Pepper answered and smiled upon seeing who it was.

"Steve, Natasha, good to see you again," Pepper said warmly before looking over at Barry. "I don't think we've met."

"No, we haven't. Nice to meet you Mrs. Stark," Barry said politely.

"Please, call me Pepper," Pepper said and he nodded.

"Pepper. I'm Barry Allen," Barry said, holding out his hand and she took it in a handshake.

"Nice to meet you Barry," Pepper said as they dropped hands.

"Pepper, we need to talk to Tony about something important," Natasha said and Pepper nodded in understanding.

"I'll go get him; he's just putting Morgan down for a nap," Pepper said, gesturing for them to come in.

As the four of them entered the living room, Tony was just coming down the stairs. As he saw Steve and Natasha, Tony paused, the room filled with awkwardness.

"Cap, Nat," Tony said wearily.

"Tony," Natasha said no hint of animosity in her voce.

"How are you?" Steve asked politely.

"Well, I've gotten less sleep the last few months than I have my less savory days, but I'm okay," Tony said as he spotted Barry. "Who's the new guy?"

"Barry, Barry Allen. Mr. Stark, we need to talk to you," Barry said firmly.

Avengers Compound

Same time

"Yeah, I'll talk to you soon buddy once I know more. I love you, bye," Oliver said, hanging up as Nyssa walked over to him.

"William?" Nyssa asked and Oliver nodded. "Have you told him?"

"No. If this fails…I don't want to get his hopes up for nothing," Oliver said and Nyssa nodded in understand.

"I understand. Better to have no hope than to lose it," Nyssa said and it was silent for a moment. "If this does work…what will you do?"

"I don't know. First, I'll have to work out a custody arrangement with Samantha; I know William will want to see his mom a lot. The Green Arrow will be needed, so I'll have to take up the hood again. What about you?" Oliver inquired and Nyssa shrugged.

"I'm not sure. For the first time since I can remember…I have no path," Nyssa said and it was silent between them for a moment.

"On the chance that we both survive this…want to get a drink afterwards?" Oliver said and she looked at him oddly.

"Like a date?" Nyssa asked for clarification.

"Yeah, exactly like a date," Oliver said, eying her for her reaction. "I don't know what this is between us, maybe it's just me but…you've been there for me for the last year, I would not have been able to get through this without you Nyssa. And…I can't imagine my life without you in it. So…what do you say?"

For a moment, it was silent. Then, Nyssa grabbed him roughly and pulled a surprised Oliver into a kiss.

"What took you so long?" Nyssa asked breathlessly as she pulled back.

Stark Cabin

Not long after

"Time travel?" Tony asked, messaging his temple with his left hand as he, Steve, Natasha and Barry stood outside on the deck.

"I've done it before, several times in fact," Barry told him.

"And now you wanna use it to pull off a…what is this exactly?" Tony asked.

"My friend Cisco is calling it a 'Time Heist'," Barry shrugged sheepishly.

"Oh, Time Heist, catchy," Tony said sarcastically.

"Tony, Thanos put the stones in the past. We go to the past and we get them back," Steve said.

"We snap our own fingers, we can bring everyone back," Natasha added.

"Or we can screw it up even worse," Tony argued. "How do we even know where the stones are anyway?"

"Because the stones are an extension of The Speed Force, they're connected. It knows where they are and it told me," Barry said honestly.

"Oh, so we're trusting a guy we just met and a cosmic force we don't understand. Gee, let's all hold hands and sing Kumbaya," Tony said sarcastically.

"Tony, we need to make a stand," Natasha said softly.

"We did stand. And yet here we are," Tony said.

"Mr. Stark, Tony," Barry said gently and Tony looked over at him. "I get it, okay? You have a wife, you have a daughter. In your shoes, I can't say I wouldn't be a little hesitant either. But think about Peter."

"How do you know about him?" Tony asked after a moment, shocked.

"Because I was in the Speed Force. I saw the past, present, and future," Barry said honestly. "I know he died in your arms, I know that haunts you. But more than that, I know you won't be able to live with yourself if you don't at least try."

Tony stared at Barry for a moment until they heard a creak as the front door opened.

"Tony, you have to," Pepper said as she walked out.

"Pep-" Tony started.

"We got really lucky, a lot of other people didn't. If Barry is right, you have a way to help them. And…you won't be able to rest if you don't, it will haunt you for the rest of your life," Pepper said gently.

For a few moments, Tony was silent. Then, he nodded, his face hardening as his eyes filled with resolve.

"Alright. I'll meet you guys at the Compound later, I have to grab some things," Tony said and Barry, Steve, and Natasha nodded.

"Thank you Tony," Steve said gratefully.

"Thank me when we bring everyone back," Tony said before he and Pepper walked back inside.

"Speaking of, I need to head into town. There's someone I need to pick up," Barry said before he sped off.

"He's worse that Pietro," Natasha muttered and Steve grinned.

New York

Not long after

In a rather modest apartment, Caitlin was making some coffee when she felt a gust of wind on her hair, a feeling that was all too familiar to her. Shock flooding her, she turned around to see Barry standing behind her.

"Hi Cait," Barry said calmly.

"Barry," Caitlin breathed. "But how, you were trapped in the Speed Force?"

"Long story, but the cliff notes version is that I know how to bring everyone back. But I can't do it without you," Barry said.

"I don't understand. How can you possibly want anything to do with me, after what I did?" Caitlin asked emotionally trying to hold herself together.

"Because it wasn't you," Barry said gently as he walked over, putting a hand on her shoulder. "It was Killer Frost…and me."

"What?" Caitlin asked confused and Barry smiled tightly.

"It's hard for me not to see my own role in what happened to you. Even Flashpoint aside…I wasn't there for you, not like I should have been," Barry said in guilt.

"You were trying to save Iris," Caitlin said but Barry shook his head.

"That's not an excuse. Ever since I met you, you were always there for me, no matter what was going on in your life. And when you needed me to do the same, I-I was too caught up in myself and Iris to care," Barry said ashamed. "I will never forgive myself for that."

"Barry, I would've lost control to Killer Frost one way or another. Nothing you did was going to change that," Caitlin said, putting a hand on the side of his face.

"Maybe, maybe not. But I should have been there for you, no wonder Killer Frost chose to side with the psychopath who had my face. He was the one who was there for her," Barry said bitterly.

"Hey, let's not hold ourselves responsible for what our alter egos did, okay? If I can't blame myself for Killer Frost, you can't blame yourself for Savitar, okay?" Caitlin said and, after a moment, Barry nodded.

"Okay," Barry finally agreed. "But I still need your help. You and Killer Frost."

"You know?" Caitlin said shocked after a moment.

"That you and Killer Frost came to an understanding? Yeah, I know," Barry said.

"And you're not…angry?" Caitlin asked cautiously.

"She's a part of you, like my speed is part of me. I can't hate her without hating you. I'm willing to put the past behind us if she is," Barry said.

After a moment, Caitlin closed her eyes. Slowly, her red hair turned a white blond and her skin turned pale. She then opened her eyes to reveal icy blue orbs.

"So what's the plan Flash?" Killer Frost asked.

Avengers Compound

Afternoon

"I still can't believe I'm here," Cisco said as he looked around the Compound like a kid in a candy store.

"You and me both," Scott said as the two were exploring the Compound. "Me from six years ago would be so jealous right now."

"Me from four years ago," Cisco said as he looked around in awe.

"It's impressive, isn't it?"

The two turned around to see a dark haired man who was wearing glasses.

"Hi, I'm-"

"Bruce Banner," Cisco gawked, rushing over and shaking his hands. "Oh Frak! I've always wanted to meet you! Your work on Anti- Electron Collusions is revolutionary!"

"Thank you," Bruce said, seeming thrown.

"I'm Cisco Ramon, huge fan. And I'm shaking your hand too long," Cisco realized and subsequently dropped Bruce's hand. "Sorry, I just always wanted to meet you."

"It's fine, it's nice to be appreciated for something other than…the other guy," Bruce said with a wince.

"I know the feeling," Caitlin said as she, Barry, Steve and Natasha walked into the room.

"Caitlin," Cisco said, shocked upon seeing her and she smiled weakly.

"Hi Cisco," she said wearily, not sure how he would react to her.

Suddenly, Caitlin found herself wrapped up in a bear hug from Cisco.

"I missed you so much," Cisco said his voice think we emotion and Caitlin's eyes welled with tears.

"I missed you to," Caitlin said gruffly as she returned the hug.

Everyone averted their eyes, feeling like they were intruding on a private moment.

"Hey Nat, Cap," Bruce greeted his old friends.

"Hi Bruce," Natasha said politely.

"Glad you could join us all the way from DC," Steve said, holding out a hand as the two shook hands.

"Well, when you said there was a way to bring everyone back, I knew I had to be here," Bruce said as they dropped hands. "Would you like to bring me up to speed?"

"First, there's a problem we need to take care of," Barry said and every eye in the room turned to him.

"Barry, what are you talking about?" Steve inquired.

"Dr. Banner knows. He still hasn't been able to make Hulk come out," Barry said and Bruce looked shocked.

"How do you know about that?" Bruce asked shocked.

"Let me guess, The Speed Force told you?" Natasha asked sarcastically and Barry smiled slightly.

"Pretty much," Barry admitted as he turned back to Bruce. "But the point Dr. Banner is that we need you and Hulk for this to work."

"Well, the big green asshole won't come out," Bruce said annoyed.

"That's the problem, you two have a lot to work out," Barry said as he walked over to Bruce. "I'm sorry Dr. Banner, but we don't have another choice."

Barry then touched Bruce's forehead before, to everyone's shock, Bruce's eyes rolled into the back on his head and he collapsed, falling on his back.

"Bruce? Bruce?!" Natasha asked worriedly as she and Steve rushed to his side.

"He'll be alright. Hopefully," Barry said and they looked at him incredulously.

"What do you mean hopefully?" Steve asked.

"Well, that's up to him and Hulk now," Barry said.

Bruce opened his eyes and looked around in confusion. He was in what resembled a cage, green light imprisoning him. But it was what was on the other side of the cage that made him freeze in terror.

"Puny Banner!" Hulk roared as he rushed towards Bruce.

Hulk threw a punch that struck Bruce in the face. Psychically, it should have killed him outright. But Bruce merely flinched, an unpleasant feeling shooting through him.

"Who's puny now?" Bruce taunted.

Hulk roared but Bruce was not worried. He didn't know where they were, but clearly he couldn't get hurt here, at least like they could in the physical world. Drawing on his martial arts training, Bruce sent a spinning kick towards Hulk. The kick sent Hulk flying into the edge of the cage. His pride stung, Hulk launched himself back into the fray. He grabbed Bruce on the fly before driving him into the edge of the cage. Bruce freed himself with a blow to the stomach. The pair flew within the confines of the cage, each trying to pummel the other into submission. Their conflict was intensified by years of pent up anger, distrust, fear, and self-hatred.

The battle to save the universe had begun.

First, let me just say there will be more Arrowverse/MCU characters who will appear, but that felt like a good place to stop.

The scene at the beginning is a modified version of a scene from Raptor2216's story 'World's collide, heroes unite', which I have used with permission.

Oliver/Nyssa is a pairing that I enjoy writing and reading but I haven't done it in a while, so I thought I'd do it here. Hope I did okay on the Oliver/Nyssa scene.

The Bruce/Hulk part is a slightly modified version of a scene from Aragorn II Elessar's story 'A beautiful Journey', which was taken from Dr. Matthattan's story 'Avengers: Dagor Arnediad. Thank you to my friend Aragorn for giving me permission to use it.