Disclaimer: I don't own Arrow. Obviously… haha. Anyways, this is my first attempt at Arrow fan fiction. So forgive my mistakes please. The characters can be a little OOC.

Chapter-1

The threat of Slade, Isabel and Blood was hovering over them, with no way to get out of this situation. Everyone in the Arrow team was frustrated beyond belief. Their days were going in a same routine. Oliver had already killed six of his training dummies. Felicity was mumbling to herself while her fingers ran through the keyboard at close to Flash's speed. Sara and Dig were training on the mat, while Roy was one moment upstairs keeping up with the club and another, downstairs training with the others. They were snapping at each other constantly without meaning to.

One of those spats had turned into a group argument, when a whistle rang through the lair. Everyone froze for a second and started looking around for the source. "Hey guys," a somewhat familiar voice greeted them.

When they all turned to the voice, Oliver and Diggle's first thought was, "Oh, it's Berry," while Sara and Roy's first thought was, "Who's this kid?"

But it was Felicity's loud, shocked gasp that turned everyone's attention towards her. "It's impossible. You're still in coma. I just checked last night with Star labs," she whispered, but everyone in the foundry heard.

"Oh… this is the oldlair!" Berry exclaimed happily, making poor Felicity jump. "Man, I totally forgot how small this place was," he added, smiling widely.

"Okay, if what Felicity is saying is true… then how did you get here? Shouldn't you be in Central City… resting?" Oliver asked. "And what do you mean, old lair?"

"Just… before I explain, I've gotta ask... they did turn on the particle accelerator, right? And I was struck by lightning? And currently… in Central City… I'm in coma?" he asked seriously, like he was trying to get his facts first.

"YES," Felicity whimpered.

"Great. I'm not out of coma yet. This me, the one that's standing in front of you… well, I'm from the future," Berry told them, but Dig immediately scoffed. Berry ignored his reaction and continued. "The accident with the particle accelerator did something to me. I run fast—really, really fast. Fast enough to travel through time actually," he explained.

Felicity blinked. "Huh?!What?" For once in her life, Felicity was stunned speechless.

Her eyes flew to Oliver for an answer. He was frowning, and she could almost see the wheels in his head turning as he tried to make sense, but then it quickly morphed into shocked surprise.

"That… is not possible," Dig said, his jaw practically on the floor.

"Well… in theory…" Felicity replied, her voice trailing off as she thought about it.

Because, maybe theoretically…

"Time travel? That's ridiculous," Dig snapped. Sara started to point out that Mirakuru was impossible too, when Oliver stopped them all.

"Let's say I believe you, but why are you in the past and why here? What time are you from exactly, by the way?" he asked, frowning.

"It's complicated, actually. Let me start from the beginning. Let's sit down," Berry insisted. "In the future, Team Arrow and Team Flash, that's me, we work together from time to time. You can say… we are one team whose one half protects Star City and the other half protects Central City. If I'm guessing correctly, which I know I am," Berry chuckles, "I'm from 7 years in the future… And I, on behalf on our team, need your help, Oliver."

"How can I help?" Oliver asked.

"Well… we need a rough-around-the-edges guy for this case we're solving. And you guys need an experienced guy for this… Mirakuru case of yours," Berry explained without making anything clear.

"I don't understand…" Oliver sounded confused, just like everyone in the room.

"We need you to switch… with the Future Oliver." Berry stated hesitantly "He'll come here to help you solve your case here… while you… will be going to the future to help us solve our case." He shrugged with a guilty look.

"WHAT…?" Oliver bellowed angrily.

"Look… we wouldn't have asked if it wasn't an emergency. Please think about it. Not only two cities, but our whole country's future depends on your decision, Oliver," Berry pleaded.

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An hour passed by. Everyone was silently looking at each other and then at the corner of the room, where a very angry Oliver was on the salmon ladder. "Oliver!" Felicity called out to him after a few more minutes. "Maybe…" she hesitated, "Maybe this is the solution we have been looking for, the last few days?"

All sound in the room ceased. "And what if…" Oliver's rough voice rang through the foundry "… this is NOT the solution?"

"Maybe you don't trust me... but you have to trust yourself. This is you I'm switching you with, and not someone else," Berry tried reasoning.

"If so... then why do you want to switch at all?" Oliver joined them, while wiping his sweat covered face and body.

"Because the Oliver from our time, has gotten a LOT softer and calm minded. He thinks deeply before he works and… you don't. The Slade problem needs deep thinking, while our case definitely needs quick, irrational thinking," Berry nodded to himself.

"I'm kind of confused…" Roy whispered to Sara. "Did he just gave Oliver a compliment or insult him?"

"Complimented him through an insult… now that's a talent," Sara stated, clearly impressed.

After a few silent moments, Oliver nodded his head. "Okay."

"YES!" Berry exclaimed cheerfully.

"It won't hurt, right? The time travel?" Felicity asked.

"It will… if he doesn't take a shower," Berry winked mischievously. Oliver rolled his eyes and looked at Felicity. At her nod, he went to freshen up.

"Won't it get confusing if past Oliver suddenly appears in the future?" Dig asked curiously. He was still having a hard time believing.

"Oh… they already know about it. After all, without Future Oliver's permission, how can I just switch him?" Berry laughs.

"So who are in the team in the future?" Sara asked with an amused smile.

"I'd tell you… but that would take away all the fun. Let Future Oliver tell you about it," Berry stated playfully.

"Okay, I'm kind of getting pretty excited to meet him," Roy said excitedly. The others agreed with him silently.

"I'm back," Oliver announced with a scowl.

"Okay, so let me tell you the process. I'll send Past Oliver first, after a few seconds Future Oliver will arrive here. And then I'll go back to the future too. Future Oliver knows about the whole process, he'll let you know the rest in detail, okay?" At everyone's nod, Berry took out a remote type object and pressed on it. Suddenly a wormhole appeared in front of them. Everyone's surprised gasp was lost at the violent wind it generated. "GO!" Berry pushed Oliver towards the worm hole and as he takes a step towards it, he vanished into it. The worm hole closed.

Everyone sighed in disbelief. "OH?" Berry's shocked shout scared everyone.

"What!? Did you make some mistake?" Dig asked, eyes wide open.

"What? No! But… did I tell him… that he's married and has kids in the future?" Berry asked looking at others in confusion. Everyone just gaped at him.

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A/N: So what did you think about this chapter? Should I continue? Do you guys want to know what happens when Oliver meets his family?