"Laurel, what's with the new outfit?" Iris asked as she entered the cortex. "Where are Barry and Oliver? They went on a trip to Earth-2 and haven't come back yet. I'm really worried. Thought you were back in Star City…"

Laurel smiled a wicked smile. "I'm headed there now! But first, I'm gonna give you a present!" She sonic screamed really loudly, knocking over Iris and escaping.

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Meanwhile, back on Earth-2, Raymond, Barry, and Oliver were finally arriving at Smoak Tech. Oliver was surprised to see Felicity on a sign wearing very formal clothing and her hair straight and shortened compared to her usual ponytail. "That's Felicity?" Barry asked, voicing Oliver's surprise.

"Yes, that's my wife. At least, we're estranged currently. Maybe I should pull a Tommy Merlyn and marry again. "I know Tommy," Oliver said, shocked to hear his best friend was still alive. "We were best friends growing up."

"Nice to know," Raymond said. "I know all the passwords here." He opened the door and went to the front desk. "Excuse me, Talia, but may I see my wife?"

Talia nodded. "Ms. Smoak will see you now. Who are these people?"

"These are my friends, uh…" Raymond began.

"Oscar Queen," Oliver said quickly. "And Harry Allen. We're in town to see my aunt Moira. Ms. Smoak let Raymond bring guests."

"Very well then, you can pass," Talia said. Barry sped Raymond and Oliver upstairs.

"Raymond Palmer, where have you been since October?" A voice unmistakably Felicity's asked as Raymond pushed open the door.

"Honey, I took a little trip to Central City…" Raymond started.

"Explain the blue arrows on your back, Raymond. And the men in red and green," Felicity replied coldly.

"They want to see Carter Hall," Raymond explained. "He's in a lot of trouble."

"You want to see Carter?" Felicity asked with rage. "That proves you haven't been here. I fired him. Working as a mechanic now in The Glades. Kendra took his place, she's visiting right now,"

Oliver couldn't help notice the parallels between Roy and Carter and Kendra and Thea in this universe. "Excuse me, Felicity-that is, Ms. Smoak," Oliver asked. "But why are you like this?"

"It was either this or become a science teacher. I have a genius IQ, I don't want to waste it. Better to compete with Queen-Merlyn," Felicity laughed rudely.

"I'm going to call Kendra," Raymond said.

"You will do no such thing, Raymond!" Felicity yelled. "Get out!"

Barry quickly sped Oliver out. "I stole Ray's phone. Now, I'll lure Kendra and Carter here."

"Not sure that's the best idea," Oliver said.

Barry dialed the number and spoke. "Kendra Saunders, Barry Allen, CCPD. Your brother has been gravely injured, and we think Carter Hall is the culprit!"

Oliver quickly left the room and waited for Barry in the lobby. After falling asleep, he was suddenly jolted awake by Kendra in full vigilante gear. "Well, where is he?" Kendra asked, holding Oliver at gunpoint. "My brother!"

As Oliver fake-struggled to respond, Barry through a net over Carter and Kendra. "Let's get these guys back to S.T.A.R. Labs!"

"I'm glad for once you're super fast," Oliver laughed.

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Back on Earth-1, Cisco entered their cortex to find everything shattered and Iris unconscious. "Iris!" Cisco exclaimed. "Who attacked you, what happened?"

"It was Laurel. We need to call Team Arrow and warn them. She's gotten dangerous." Iris replied.

"Laurel wouldn't do this…" Cisco complained. "I'll call her right now." He put in Laurel's number, and was pleased to hear a response. "Cisco? Is something wrong?" Laurel asked.

"I think you may have an evil twin running around," Cisco admitted. "You need to hide,"

"I'll be at S.T.A.R. Labs pronto! Who should I bring?" Laurel wondered.

"Hmm, Sara, Carter, Kendra, Ray, Felicity, Roy, Thea, and John," Cisco decided.

"On it!" Laurel exclaimed.

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Meanwhile, the aforementioned evil twin noticed another pair of meta humans as she made her way to Star City. It was an old man with glasses and a younger man. She admired the power they were showing with fire. It was similar to Deathstorm, a fellow lieutenant in Zoom's army. However, this was no time for admiration. She wanted to destroy all other meta-humans only so she could become the most powerful of all.

"Hi, my name is Laurel Lance," She smiled at the two men. "Would you two mind telling you who you are?"

"Nice to meet you, Ms. Lance," The old man said. "I'm Martin Stein, and this is my meta-human formation partner, Jefferson Jackson."

"Gray, you can just call me Jax," Jefferson sighed. "Anyways, can we help you, Laurel?"

Suddenly, Laurel realized she had heard Stein's name before. He was a famous Central City scientist who had once received an award from her own brother-in-law, the mayor of Central City, Leonard Snart.

"The mayor wishes to present you with an award. Bring your boyfriend or whatever he is. I'm district attorney there now," It wasn't a very good lie, but it was the best thing Laurel could think of under the circumstances.

"It's illogical they would hire a new district attorney without my knowledge," Stein said.

Laurel sonic screamed Jax away. "How about now?"

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Meanwhile, Barry and Oliver were arriving back at S.T.A.R. Labs with Carter and Kendra. Harry was looking very angry at them.

"You two may have accomplished your mission through various risky activities, but you caused a lot of chaos!" Harry yelled.

"But even if the portal closed, Cisco can still make a new one, can't he?" Barry asked.

"While technically he can, despite having just discovered his powers, that's not the issue. The Black Siren escaped to Earth-1." Harry explained.

"Oh no…" Oliver moaned. "She could ruin everything for Laurel,"

"Then it's time we utilize my inventions and find a way we can reflect your Laurel's personality on her," Harry suggested.

"That's a fine idea, but first, we should get home," Barry pointed out. "I haven't seen my friends here, maybe that can wait a week or two,"

"Good ideas, Barry," Oliver replied. "I guess we just wait for Cisco…"

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Team Arrow, Team Flash, Carter, Sara, Ray, and Kendra gathered in the lab, all very shocked to hear the news that Laurel had an evil twin running amok. Sara realized she had never met Ray before, and introduced herself. "Hi, Ray, nice to meet you with my soul intact," Sara greeted.

"Hi, Sara, nice to finally meet you, and not as a corpse," Ray laughed.

"I think it's funny that you two haven't met yet," Laurel replied. "Considering that you two know all the same people."

Suddenly, Jax appeared in the doorway. "Guys, I need help." He then saw Laurel. "It was her! She hurt Gray!"

"Professor Stein has been injured by Laurel's doppelganger?" Caitlin asked.

"I don't know about this doppelganger stuff or who all these people are," Jax admitted. "But he needs help fast!"