This is an AU Story

I DO NOT OWN Supergirl, Flash, Arrow, DC's Legends of Tomorrow, or any other DC related characters.

Timeline

The events of Flash Season 3, Supergirl Season 2, Arrow Season 5(Assuming William's mother didn't survive Lian Yu), DC's Legends of Tomorrow Season 2 all occurred in this universe. The only real difference is that they all transpired in the same universe. Only Earth 2 (Harrison Wells, Jesse Quick,etc) is the other parallel universe they know of so far.

Wonder Woman, Green Lantern, Batman, and Superman will also be in this story. Let's just imagine that they inhabit the same universe. The justice League was also formed after the Dominator Invasion so that the Earth could be defended from large scale. Every hero in the Arrowverse is a member. For story reasons let's say that the heroes were too overwhelmed with their own individual villains, so they couldn't help Supergirl with the Daxamite Invasion.

All Kryptonite will be destroyed for story reasons. I want to make the situation harder for the heroes.

I'm apologize for not writing in a long time, and for the length of this chapter.

Barry woke up to and began preparing breakfast.

After an hour Kara woke up to the nice smell of pancakes. She headed to the dining are only to see a shirtless Barry reading a newspaper. She couldn't help but blush.

"Barry, you shouldn't have" Kara said

Barry held his hand up "It's the least I can do for my guests, what do you say we dig in I've been waiting for you guys"

"Yeah sure" Mon-El said

After they finished Barry quickly cleaned the dishes.

"So, Kara I was hoping to ask you a question in private" Barry said

"Sure, what is it" Kara Replied. Mon-El at this time had gone back to the guest bedroom to let the two talk in the living room.

"Do you think Clark's changed?"

"What do you mean?"

"Well he did just kill the Joker in cold blood, doesn't that make you think that he's changed for the worse?"

"He's just grieving Barry, if he didn't kill him, I would have."

"Kara how could you say that, we're heroes not killers. After Zoom killed my father all I wanted to do was kill him, but I didn't because I would only prove him right when he said we weren't so different. Your heroism also kept me from crossing the line" Barry began holding her hands and looking into her blue eyes "Please don't say that"

Mon-El cleared his throat. "Barry could I now have Kara for a moment?"

"Umm yeah sorry didn't meant to hold her hands" Barry replied.

"What's wrong Mon-El?" Kara asked

"I just don't like the way he was looking at you. Clark was telling me what happened before I arrived, I know about the Iris incident" Mon-El said.

"Nothing is going on between the two of us, we're just friends there's nothing to worry about" Kara replied.

"Ok just making sure" Mon-El said. He trusted Kara, but not Barry the last words of Brainiac 5 remained in the back of his mind.

By the time the two went back to the living room Barry was gone. He just left a note saying he's going back to work.

In Central City Police Department

"Mr. Allen good to see your back from your vacation. I hope you're ready to continue with your work" Captain Singh said.

"Yes captain, I'm sorry about my unscheduled last-minute vacation, don't worry I can catch up on all the cases I missed" Barry said.

"Good to hear it so get out of my office Allen." Singh said

With that Barry returned to his lonely office to begin working. Wanting to waste his time in eight hours he finished the 100 cases he missed.

"We'll glad that's over" Barry said to himself.

As soon as he said that there was a small knock on the door. It was the last person he expected to see, Iris.

"Hey Barry, I want to apologize for what I did to Kara and you. I know I may have overreacted a little and I'm sorry" Iris said.

"A little? You called her out in front of all our friends. You should be apologizing to her not me" Barry said.

"Do you know where she is? She's not taking any of my calls." Iris asked

"Last I knew she was at my apartment" Barry said

"Wow Barry, I know you're the fastest man alive, but even I didn't expect you two would get together so quickly" Iris joked.

"It's not like that, she and Mon-El were just staying with me, Oliver and Bruce died" Barry said while blushing.

"Wait Mon-El is back and Bruce and Oliver are dead?" Iris said

"It has been a hard week I can explain later" Barry said looking away from her.

"Ok, we'll I'm off to apologize to Kara. I'm sorry you didn't get her she's a good person." Iris said as she was starting to leave.

"Iris I forgive you, you're my sister I could never be mad at you, just never insult Kara again or you'll be greeting a T-rex for the next couple of years." Barry said

"Haha good one Barry" Iris said as she gulped. One down one to go she thought to herself as she left.

"Better begin patrolling the streets" Barry said to himself. He quickly formed his costume, put on his coms, and began running.

"Hey Cisco can you hear me?" Barry asked

"Loud and clear Barry. Your suit apparently has vitals already set up onto the STAR Labs server, you're all good and are traveling twice faster than Savitar" Cisco replied

"Any crimes in progress, a good robbery or something?" Barry asked

"Yeah there's a robbery at the local bank, time to show the criminals of Central the Flash is really back" Cisco said

"Yeah" Barry replied. He made quick work of the criminals and continued patrol for the next couple hours.

"Cisco when exactly is the funeral for Oliver and Bruce?"

"It started an hour ago, I've been here helping and covering for you."

"Oh crap, ok thanks for the heads up" Barry sarcastically replied.

"Hey I did tell you, you were just too busy talking to me about your relationship problems to realize what I said"

Barry made his way back to his apartment and quickly prepared for the funeral. He managed to arrive to the hall right on time for the end of the funeral.

"Any last words about the fallen?" Superman asked

"I have some" Barry said.

"Ah Barry, good to see you here, now come on up" Superman said.

Barry cleared his throat and began, "Oliver Queen was a good and honorable man. Before I became the Flash, he was my idol. Despite having no powers, he always fought crime, he even managed to kick my ass. Some of you may not know this, but he actually helped make me the Flash. When I first got my powers I was so confused and scared and I didn't know what to do with them. I didn't think I was worthy of such power, but the words he said really inspired me. I'll never forget how he told me that the lightning bolt chose me, and that I could inspire others in a way he never could. That last part was a lie, Oliver Queen is a true hero and an inspiration for every single one of us. Oliver Queen was my friend and my brother."

"Bruce Wayne was just as inspiring as Oliver, hell I even think he could give Oliver a run for his money, but I digress. Bruce may have been a very stoic and serious man, but inside he was just as compassionate as others. Bruce worked hard as Batman and his self to make Gotham a safer place for people to live in. He helped developed breakthroughs in health care for orphans in Gotham. He always had good morals and fought for justice. He was truly a superman, no offense Clark" Barry said.

After Barry finished his speech the others began to bury the empty coffins with the heroes' symbols.

"Hey Kara did Iris visit you today?" Barry asked when he got a chance to talk to her.

"Yeah she told me she was sorry about what she said. It's crazy to think she though you loved me, right?"

"Yeah right" Barry agreed with his heart being broken a little. Maybe its not meant to be he thought.

After saying goodbye to everyone Barry had one more destination in mind, his parent's burial sites.

"Hey mom and dad. I know I haven't really visited you in a long time and I'm sorry. This past week has very tragic with Metropolis being destroyed and the burden I've been given, but I just wanted to say I miss you guys. I'm proud to be your son."

With that Barry headed back home to rest from his exhausting day.

In an unidentified earth

"Do we have a lock on prime earth?" a mysterious male voice asked

"Yes sir" a scientist said.

"Good, it's time to show that Barry Allen that I am the reverse of him and destroyer of everything he loves. Get the team ready, except for her, she can't know of this she'll ruin everything." The mysterious voice said towards a soldier.

"Yes sir" the soldier replied and was on his way.

As the mysterious man looked at a screen, he could see Barry Allen, and thought to himself I wonder how your Eobard messed up in killing you. As his thought finished the mysterious man sped out of the room to go to his own room and begin research.

"Gideon" he said

"How may I help you?" Gideon replied

"Tell me everything about the Flash again"

"Barry Allen aka The Flash is/was the strongest member of the Freedom fighters and has an overwhelming fear of losing his loved ones. He will do whatever it takes to keep them alive."

"Thanks Gideon I have it all planned out. If he's anything like the Barry of this Earth I know who I have to take."

"It's time for the invasion of prime earth to begin." the man wickedly smiled.

Elsewhere on that same earth

"Sir, Blitzen has reported that we may invade Prime earth." A soldier said

"Good, good, get the Legends and Overgirl" the new mysterious man said

"Sir, Blitzen said not to inform Overgirl, she's too reckless."

"Are you disobeying my direct orders soldiers" the man asked with a gun pointed to the soldiers head.

"No sir, I would never disobey you in a million years"

"Your right you never will" the man shot him. "Get the Legends ready and Overgirl and someone clean up the mess. We'll lure them back and fight them on our own terms. I hope these new heroes can at least put up a fight."

Unknown bunker in the same earth

"We intercepted a message saying they have the technology to make it to prime earth, the invasion is about to occur." A brunet man said

"We can try to help the heroes of the other earth, when they get here." A blond man replied.

"When they get here?" the brunet man asked

"Blitzen has a way to lure others, it always involves kidnapping someone. They will come and we will be ready to help them." The blond man replied. "For Barry Allen"

In front of the two men on a table was a ripped red costume with a large hole in the chest.

"Get ready Freedom Fighters" the blonde man said.

Prime Earth

"Gideon where and when are we?" a blonde woman asked

"It appears to be Central City 2017"

"Are home?" an old man with glasses asked

"Yes, and captain everything seems to be in order" Gideon Replied

"Lets go say hi to our friends" the blonde woman said.