Disclaimer: I do not own DC Comics or the CW TV shows Arrow, The Flash, Legends of Tomorrow or any other characters or elements pertaining to the mentioned franchises.

Robert Queen Applied Sciences

"Are you sure about this?" Jack asked as he, Henry, Richard, Chloe, Diggle, Sara and Oliver were inside the van, all in black clothes, leather jackets, backpacks and ski masks.

"This was your idea." Sara pointed out.

"Yeah but when I suggested it, I was going to call my friends at CIA, not that we'd do it ourselves." Jack muttered as Diggle parked outside the Robert Queen Applied Sciences Building. Diggle cut through the wires with a pair of pliers, while the rest was taking out the guards and as Oliver, Richard, Jack and Henry were putting the guards in chokehold, Sara kicked one of them down the stairs.

"Hey! That man used to work for me!" Oliver snapped at her.

"And now he works for our enemy." Sara shot back.

"The cameras are down." Chloe said as Oliver pulled out a white, cylinder shaped device, using it on the electronic lock.

"What's that?" Jack asked.

"Skeleton key. Basically, it can be used on any electronic lock." Oliver explained as they all entered the Applied Sciences building.

Diggle knelt down and pulled out the charges. "These are plug-and-play." He handed the team the bombs. "Fasten them to what we talked about. Let the C4 do the rest."

"Reminds you of something?" Jack asked as Chloe, Richard, Sara and Henry tensed.

"Jeez, don't remind us." Sara grumbled.

"Quick and clean." Oliver said as the group was scattering around the building, setting the charges.

It all went well, until a guard snuck on Chloe. "Freeze!" He pointed his gun at her and neared her as Chloe spun around, grabbed his gun and hit him in the head hard enough to knock him out.

"We need to go, now!" Oliver ordered as Chloe put the guard on his shoulders and they were leaving the building.

"All clear." Chloe said as she looked at the computer and Oliver reluctantly pulled the trigger out of his pocket.

"It's just a building, Oliver." Diggle reminded him. Oliver took a breath and pressed the button as the building exploded.

Later, the Lair

"You said he needed an industrial centrifuge to create an army of human weapons." Jack said. "At the very least, this should set him back." Oliver nodded. "Do you have any other plans?"

Oliver shook his head. "We have no way of knowing where the next attack is coming from."

Later, Iron Heights

"Daddy, I'm so sorry." Sara said as she, Laurel and Quentin were in a visitor's room.

"This isn't on you, sweetheart. I made my choice." Quentin assured them.

"But you're facing eighteen months in prison." Laurel pointed out.

"I made my own bed. Don't worry about me." Quentin said.

Queen Manor

Ned Foster, the Queen family attorney, was with Oliver and Moira in the lounge. "Where's Thea?" Ned asked. "She should be here for this too."

"I doubt she's coming." Oliver admitted.

"Well, I can't lie to either of you. It's bad." Ned said as he showed the papers he had in his briefcase. "If Isabel Rochev is one thing, it's thorough. She's been laying the foundation for this takeover for months."

"But we still own a majority of the stock in the company, correct?" Oliver asked.

"Yes but Isabel has diluted that stock to the point where it's worthless." Ned pointed out. "On paper, you're virtually broke."

"And what's the good news." Oliver asked, sighing.

"We can protect your assets." Ned showed him the documents. "We need to move everything into a new trust that Isabel can't touch. All I need is the beneficiaries from the current trust to approve the transfer. The two of you and Thea."

"Thea needs to sign off." Oliver realized, knowing that in the current state, she would unlikely sign the papers.

"Yes and quickly." Ned nodded.

"Thank you, Ned." Moira said as she and Oliver stood up and Ned then left the room. "Well, now I have to become the mayor. It seems I'll need the income."

"Losing the company wasn't your fault. It was mine." Oliver said. "I let Isabel Rochev get the better of me."

"No." Moira assured him, holding his arm. "You always see the good in people, even if they don't deserve it, I know that better than most. Isabel is a vindictive woman, she would have done this with or without your trust."

"How do you know?" Oliver asked. "You told me months ago I couldn't trust her."

Moira sighed. "Your father had a weakness for beautiful, strong women."

Oliver wiped his face, feeling sick. "They were together?"

"Yes." Moira said as Oliver tried to suppress the uncomfortable taste in his mouth. "She was still in business school at the time. The pretty intern caught the CEO's eye." She signed the documents before handing them to Oliver. "Alright, you take this to Thea and you convince her, somehow, to help us fight back."

Oliver nodded.

Three years ago, Africa

Jade sliced the officer's head off with a copper dagger. "You have no idea, how much are you getting yourself over your head, do you?"

"Cain will not have the Essence. He cannot expect to control the Untitled." Elian argued.

"We have our ways." Jade smirked.

"I knew I shouldn't have trusted you." Sara seethed.

"But thanks to you, this Untitled has helped us gather enough of the Essence and your friend Naomi will help us take over." Jade said.

"Over my dead body." Elian sneered.

"You kill me, Nicole and Naomi are both going to die." Jade said as they glared. "Now, come along."

Present, Verdant

Sara was at the bar, preparing it as Oliver entered, followed by Jack, Henry, Chloe, Diggle and Oliver.

"Hey." She smiled at them.

"Is Thea here?" Oliver asked.

"No, I haven't seen her." Sara replied.

"How's your Dad?" Oliver sighed.

"He's willing to go to jail for the Arrow." Sara told them. "And I called Sin, she said that Roy's place was empty. Looks like it's been that way for a while now."

"Where the hell did he go?" Oliver wondered before taking a breath. "Roy will have to wait. Alright, we need to deal with Slade." They followed him to the basement. "Figure out what his next move is, I know Slade, he's not going to stop until—"

"Welcome home." Deathstroke said as he was standing inside the lair.

Deathstroke pulled out a gun and opened fire as everyone took cover, while Henry, Jack and Chloe pulled out their guns, firing back but couldn't penetrate his armor, while Sara ran behind the salmon ladder before lunging at him with her baton but Deathstroke spun around, grabbing Sara by her throat.

"Hello, Sara." Slade said before he threw her across the room.

Jack, Diggle, Chloe and Henry kept on firing but the bullets sparked off the armor as Deathstroke stood there, unfazed.

"You're wasting your bullets." Slade said as he turned his attention to them, while they realized they ran out of bullets.

Diggle tried to whack Deathstroke in the head with his gun but to no avail and Deathstroke punched him as he flew through the glass case as Oliver and Richard jumped at him with two pairs of steel escrima sticks. Deathstroke blocked their attacks with his sword before punching Richard as he slid down the floor and Deathstroke cut into Oliver's arm and grabbed him by his arm, flipping him over as Oliver landed hard on the ground before Deathstroke hit him in the head.

"Don't forget, who taught you how to fight, kid." Slade growled.

"Get away from him, you son of a bitch!" Henry snarled, rushing at him but Slade sidestepped and grabbed Henry by his jacket before throwing him at Chloe and Jack as they all hit the ground.

As everyone recovered and got up on their feet, they noticed that Slade had disappeared.

Later, Starling General

"You guys OK?" Laurel asked as she entered the room, where were Oliver and Sara as they nodded. "What happened?"

Oliver sighed. "Slade happened."

"What?" Laurel exclaimed. "Are you—"

"We're fine, don't worry." Sara assured her sister. "We won't let him hurt you or anyone else. You have our word."

Laurel nodded as Henry entered, holding his hip. "Everyone OK?"

"Yeah." Oliver nodded as Laurel smiled at Henry.

"Hi."

"Hey."

"Are you OK?" Laurel asked.

"Don't worry." Henry assured her and Oliver noticed how they were looking at each other as it clicked.

"Oh."

Sara nudged him and gave him a pointed stare. 'Be nice.'

Later, the Lair

Oliver went down with Diggle as Jack, Henry, Richard, Sara and Chloe were scouring the lair.

"How's Thea?" Chloe asked.

"Don't ask." Oliver sighed. "What do we have?"

"We did a full sweep, he took the skeleton key." Sara said.

Oliver took a breath. "He needs a new way to mass produce the serum now that we've dusted Applied Sciences."

"With the skeleton key, he can get into anywhere and take anything he wants." Diggle realized.

"We know what he wants. We just need to find it first." Oliver said.

"And I think I know where he might find it." Henry realized. "I sort of keep track with technology companies."

Later, S.T.A.R. Labs

The Arrow, the Canary and Richard, in his League of Assassins outfit entered the building, only to arrive too late.

A while later, Chloe arrived as a young man and woman approached them.

"Cisco! Caitlin! Are you guys OK?" Chloe approached them.

"Chloe!" Caitlin hugged her. "What are you doing here?"

"I still keep tabs on CCPD, I've heard about the break-in. What happened?" Chloe inquired.

"Some lunatic with a mask and sword came here and… I don't know, man." Cisco said, exasperated.

"And what did he take?" Chloe asked. "Was it an industrial centrifuge?"

"No. It's a secret." Caitlin said quickly.

"What kind of secret?" Chloe asked.

"The kind that I have to keep." Caitlin said firmly as Chloe nodded.

"OK… if you need anything, let me know. How's Barry doing?"

"He's the same." Caitlin said as Chloe sighed.

"Just… if he gets better—"

"Sure." Caitlin nodded.

Later, the Lair

"Do we have anything?" Oliver asked.

"According to CIA, Slade stole a biotransfuser. A S.T.A.R Labs bio-tech prototype." Jack said as he showed them the information on computer. "It can deliver blood from one single patient into multiple patients at once."

"Oh, God…" Sara whispered in realization.

"Why would Slade need a blood transfusion?" Diggle asked, confused.

"He doesn't. The prisoners that he freed from Iron Heights last week to create his personal army do." Oliver corrected.

"And if he knew how, Slade could use the machine to transfer the Mirakuru in his blood in his system to those inmates." Henry deduced.

"That's a lot of blood to transfer." Richard pointed out.

"Even a man of Slade's stamina can't handle that kind of drain." Diggle agreed.

"Good." Oliver said.

"What do you mean?" Sara asked.

"We let him use it." Oliver explained.

"And by the time he's done with it, he'll be too weak to fight back and that's when we take him out." Jack realized as Oliver nodded.

"That thing will need a hell of a lot of juice from the power grid to use." Chloe said. "If he uses it, we'll know. We just need to wait and then, we find him."

"I'm tired of waiting." Oliver snapped.

Three years ago, Africa

"Where are they now?" Sara asked as they were outside the bar with Jack, Jade, Richard and Elian.

"We need to head back to the sanctuary." Elian said. "The All-Caste is in danger."

"How do you know that?"

"I just do!" Elian ran towards the car.

Present, the Lair

"You OK?" Jack asked as Sara kept staring at the suit.

"Yeah…" Sara sighed. "I just remembered Africa, you know?"

"It's not your fault." Jack assured her.

"I know that but…" Sara wiped her face. "You stood by me, even after everything that's happened. Even when I didn't deserve it."

"You're a good person, Sara." Jack held her shoulders. "Richard made his own choice and Henry, Nicole, Riley and Naomi… we were all at the wrong place at the wrong time. You did your best. And you can't blame yourself for getting caught in your own emotions."

"I don't want to lose more people I care about." Sara said.

"Do you remember, what I told you, after Africa?" Jack asked as Sara turned to him. "As long as we have each other's back, we're stronger together… and none of us is broken so easily."

Sara nodded. "Right now, it keeps getting harder and harder to believe… you make me strong… until Slade turns you all into weakness."

"Don't think like that." Jack hugged her. "Otherwise, he's already won."

Sara then heard her phone ring. "Yeah, Laurel?"

"Don't worry about Dad, Spencer is gonna make sure he's released tomorrow." Laurel said over the line as she smiled.

"Oh, boy." Chloe groaned as she looked at the computer before dialing Oliver's number.

Outside Verdant

Oliver was talking with Thea in the alley outside the bar. "I just want to start with…" His phone rang, to his annoyance. "I know you think that…" He stopped himself as the phone kept on ringing as he cleared his throat. "Hold on." He pulled out his phone. "I can't talk right now, Chloe."

"I know the timing's not right but you need to hear this. But the power grid at Collins and Main just started to spike. I think Slade's turned on the machine. You have like thirty, maybe forty minutes. Jack's already called backup and I know you won't like hearing this but this is about your family's assets, so, please don't go."

"If I don't stop Slade right now, a lot of people will lose a lot more." Oliver hung up and turned around, only to see Thea gone.

Starling City

The Arrow, Canary and Richard dropped down from the roof access as they snuck into some kind of a lab, seeing the inmates from Iron Heights attached to the biotransfuser and they all froze to see Roy in the center.

The Arrow felt weak pulse as he was about to remove a tube from Roy's body, when…

"I wouldn't touch that if I were you." Slade said as they turned around, facing him and Isabel. "Removing him mid-cycle will surely end his life."

"Slade, he's just a kid!" The Arrow snarled.

"Who's here only because you pushed him away. You were the one person he looked up to and for that, you crushed his soul." Slade said gleefully.

"We found him at a shelter in Bludhaven." Isabel smirked. "Pathetic. Didn't even put up a fight."

"I will." The Arrow growled. "Tell me how to shut it down!"

"If you could feel the power surging through me, you would know that I do not fear an arrow. I am stronger than you can imagine." Slade pulled out his sword before pointing it at the convicts from Iron Heights. "And soon, I will not be alone."

The Arrow fired at the fuse box as the lights went off as he fired at Slade but he blocked his arrows with his sword and Isabel rushed at the Canary but she tossed her on the floor as she got up and tried to attack but Richard grabbed her arm and knocked her on the ground before kicking her as she slid down the floor and hit the wall.

The Arrow and Canary were fighting Slade before he slammed the Arrow into a pillar and flipped him over his shoulder as he hit the ground hard. The Canary tried to attack Slade but he caught her arm and threw her back.

"You can't hurt me." Slade said smugly before the Arrow fired an explosive arrow into Slade's chest as it exploded, knocking him on the ground.

The Arrow got up on his feet and moved to the biotransfuser, taking a small vial of the green liquid, realizing it was Mirakuru before unhooking Roy from the machine. Then he realized that Isabel was aiming her gun at him before eight gunshots rang out and Isabel collapsed on the floor and the Arrow turned around to see Jack, Henry, Diggle and Chloe, holding their guns.

The Arrow grabbed Roy and fired a grappling arrow to the ceiling as the Canary pulled out her grapnel gun, both of them escaping the site.

Later, the Lair

"He's lost a lot of blood." Sara said as Roy was on the table, with a bag of blood attached to his arm. "I don't know what the biotransfuser did to him but his pulse is really weak. He's barely breathing and he needs a real doctor."

"We can't take him to the hospital, they run tests." Oliver protested. "We need to keep what's in him from getting out."

"Now what?" Chloe asked.

"We'll do the only thing we can, we wait." Oliver said.

"But what about Slade?" Henry pointed out. "He has twenty men just like him. How are we gonna stop him? Should we call…"

"…CIA? Yeah… a team of black ops against two dozen super-soldiers. Who do you want to bet your money on?" Jack drawled as Henry and Chloe groaned.

"How are we gonna stop him?" Chloe asked.

"With this." Oliver pulled out a small vial from his pocket.

"Is that…" Richard trailed off.

"Mirakuru." Oliver nodded.

"Don't tell me you were gonna take it." Henry asked, worried.

"No, we're gonna use it to make a cure."

"A cure? Is that even possible?" Diggle asked.

"Yes, it is." Oliver sighed. "Ivo did it."

"Why didn't you ever tell us that?" Diggle demanded as Henry, Richard and Chloe glared at Oliver and Sara.

"Because I'm ashamed." Oliver admitted.

"Of what?" Diggle asked.

Jack then remembered. "Of course…"

Sara nodded as Jack and Oliver looked at him. "Five years ago, I had the chance to use the cure on Slade." Oliver revealed, to their shock. "Everything that's happening right now is my fault."

Later, Queen Manor

"Dad knew the truth." Oliver revealed to Thea, to her and Moira's shock.

"What?" Moira gasped.

"He knew about Merlyn." Oliver repeated.

"How? He never said anything to me." Moira said, surprised.

"He didn't have to." Oliver smiled at Thea. "Thea, whatever Dad's faults were, he loved us. All of us. You were his daughter and some stupid blood test wasn't going to change that. He chose us. He chose you. He made a decision to be your father, even though he didn't have to be." Thea was trying to hold back tears. "So, what does that tell you?"

Thea glared at both of them. "It tells me that he's a liar. Just like both of you." She sneered as she walked outside the manor, ignoring Oliver's sad look.

Three years ago

As they were running inside the sanctuary through the caverns, Ducra was on the bench, smiling as Elian looked at her elder face. "Mother…"

"It is past my time, my dear." Ducra said.

"What's going on?" Sara asked.

"They're growing stronger…" Ducra murmured as she closed her eyes and Elian's eyes were getting wet as Ducra slumped into her arms.

"I'm sorry." Sara held her shoulders.

"Naomi." Jack approached her as she was limping towards him.

"It's been a crazy ride, right?" Naomi smiled. "I don't have much time left."

"We'll figure this out." Jack assured her as she coughed out.

"Just stop." Naomi smiled. "Look, you need to stop Cain. He's searching for the Well of Sins."

"The what?" Sara repeated.

"It's a source of eternal life." Elian explained as she approached her. "It's how we have lasted for centuries here. If it's arcane power falls into the wrong hand, together with the Essence, the army of Untitled will become unstoppable."

"We need to get to the Well quickly." Naomi said before falling into Jack's arms as she kissed him. "Just… you'll be fine." She closed her eyes as the color drained from her face as a stray tear fell from his face.

"We need to get to the Well now."

They all rushed to a cavern with the monks as Cain went out from a small pool of water. "No…" Elian whispered.

"I can feel the very essence of the world pulsing from each fingertip…" Cain said, rejuvenated as his hands were sparking. "Reiter would be a fool to possess it."

"We need to stop him!" Elian ordered as Richard, Jade, Jack and Sara pulled out their weapons.

So, what do you guys think about it?

Please review and let me know if you are enjoying this so far and want for me to continue.