I had to rewatch this episode to actually make sure I knew how to let this episode play out. I can now safely say I'm comfortable with writing this out.

Reinforcements arrive from Earth-38, a certain secret gets out, and there's trouble amongst NTA.

***

Dig whistled lowly, watching Mon-El and Imra train together, both of them in D.E.O. issued jumpsuits for the time being. "You two are not pulling your punches, are you?"

"What's the point in that?" Mon-El grunted, ducking a swing from Imra.

Felicity groaned suddenly, making Dig turn around. "You OK?"

Felicity looked up from where her face was in her hands. "I have tried every trick to counter-hack what Cayden is doing, and I am completely boxed out."

"And we've figured out why," Winn gestured between himself and Querl.

"Yes," Querl nodded. "It's her fault."

Dig blinked. "Excuse me?"

Winn glowered at Querl, who blinked as well. "Was that insensitive again?"

"Brainy," Imra hissed.

Winn smacked him away, turning back to Dig. "We weren't here for this, but when you guys stopped an Internet vault from blowing up?"

"Uh huh," Dig nodded.

"It appears that that was all just a ruse," Winn sighed. "Cayden just wanted you guys to think that people were in trouble so that Felicity would break through his firewall."

"Except instead of blocking him, she actually helped him plant a virus, and because of that, Cayden James now has complete control of the entire city," Querl nodded.

Felicity nodded numbly, her face still in her hands. "A hack-cident is killing one person every eighteen minutes, and I have no idea how to stop it," she mumbled.

Winn patted her back, then looked up when he heard Oliver's voice. "We do," the vigilante said, walking up to them, with Kara, James, Slade, Malcolm, and Laurel behind him. "Thanks to Cayden James, who was kind enough to pay me a visit at City Hall."

"What'd he want?" Dig narrowed his eyes.

"He wants $10 million a day," Oliver answered.

Slade snorted. "Doesn't sound like the type of man to extort money from you, kid."

"He said he wasn't in it for the money," Kara shook her head.

"Kara's right," Oliver nodded. "That is not the actionable part. He told me the details of his son's death. He was killed one year ago today. Cayden thinks that he was collateral damage from a fight that I had in Star City."

Mon-El frowned, seeing confusion on Dig's and Felicity's faces. "I'm guessing that's not possible?"

"No," Felicity shook her head. "Oliver, you were in Hub City recruiting Dinah."

"Yep," Oliver confirmed.

"If Cayden James is motivated by revenge, maybe we can get him to stand down," Dig suggested.

"Well, I like that idea because I have no way of stopping him my way, and I have no location for you to find him your way," Felicity sighed.

"Brainy, can you help her on that front?" Mon-El asked.

Querl nodded in confirmation, pulling up a chair of his own. "This is not technology from the 31st century, but I know a few tricks that may help."

"We need incontrovertible proof," Oliver reminded them.

"Hey," Winn clapped a hand on Oliver's shoulder. "We're on it."

Oliver sighed and nodded, giving his friend a small smile as he joined on Felicity's other side, leaving one other computer station open for Lena when she arrived.

***

Dinah snarled angrily, storming back into headquarters. "I can't believe we didn't catch Vincent!"

"He had a twenty-minute lead on us," Rene huffed, following her in.

Dinah turned around when Curtis walked right past them to the computer. "Where have you been?"

"Long story," Curtis shook his head, sitting down. "I need to check on something."

He dialed on his phone, and Felicity picked up quickly. "Hey!"

"Hey," Curtis answered. "If we're still sharing intel, I need you to check on something for me."

"Yeah, shoot."

"The subway system. Specifically, where the red and gold line meet. I'm trying to stave off a disaster."

There was silence for a few seconds, then Felicity came back on. "Yeah, the automatic track signals just went offline. How'd you know?"

"Lucky guess," Curtis smiled nervously.

"You want backup?"

Curtis rolled his eyes. "Felicity, I appreciate the intel, but we're not working together anymore. My team can handle it."

He hung up the phone without waiting for a reply, and Dinah tilted her head. "Handle what?" she asked.

"Cayden James is gonna attack the subway in less than an hour," he answered, standing up. "I'd say 'suit up,' but we already are. Let's go."

***

"Note, keep an eye on the subway," Winn mumbled, making a note for himself.

"Hey, guys, take a look at this," Felicity called, pulling up images on the computers. "This is the city's transportation system, and these are all the accidents that have happened so far."

"A lot around the edges," James noted.

"That's the train lines and the freeways," Malcolm realized.

"He's laying siege to the city," Slade narrowed his eye. "That's why he wanted the port. He wants to block off all the exit routes and stop all reinforcements from the outside."

"Are there any roads he hasn't hit yet?" Mon-El asked.

Felicity frowned, clicking to check. "Yeah, there's one exit left out of the city, and it's the tunnel."

Kara blanched, and Oliver inhaled sharply. "William," they said at the same time, both rushing off.

The others watched them go, then Mon-El looked at Imra. "Keep an eye on the trains," he told her. "I'm going with them."

Imra nodded in agreement, turning back, taking a closer look at where the train lines met as Mon-El headed after the others, followed by Dig. "Can you guide me there, Brainy?" she asked.

"Affirmative," he nodded.

Imra nodded as well, heading off to get her own suit ready.

***

William peered over the top of bus seats, frowning when he saw the amount of traffic in the tunnel. He sighed, looking back down at the book he was reading, one Ruby had recommended at his dad's engagement party.

"I saw your dad's new fiancée on TV," one of the boys in the seat behind him sneered. "She's pretty hot." William clenched his jaw, hearing him and the boy on his other side snicker. "She read you bedtime stories?"

"Well, at least she can read," William snarked back, recognizing the voice. "Unlike your mom."

Donnie sneered and reached out to smack his book away. William yanked it away just in time, giving him a dirty look and returning to his page. "This field trip," Donnie snarled. "It's gonna be fun."

***

"You sure you're good?" Oliver asked Dig as they walked through the bunker.

"Yep," he confirmed. "Never better."

Oliver nodded, rounding the corner and gesturing to the glass case in front of them. "Had Cisco put this together." Dig approached the case slowly, looking it up and down, and Oliver smirked. "You OK?"

"Yeah," Dig nodded, starting to smile as he looked at his upgraded Spartan suit, complete with red accents. "Yeah."

Oliver turned, watching Kara and Mon-El run back towards them, both clad in their suits. "We need to move."

They nodded, fixing comms devices in their ears, and Dig nodded as well. "Let's go save your son."

***

"Careful around these metal lines," Curtis warned as they entered the subway tunnels. "Sometimes they can be electrified."

"I know that, T," Dinah rolled her eyes. "I'm not six."

"I didn't know that," Rene eyed the tracks warily.

Dinah looked around, then pointed to the lines. "Hey, these tracks are set to cross. The trains are gonna collide."

Curtis looked past both of them. "That could be the switch, that lever. Pull it."

Dinah nodded, gripping the lever as tight as she could, grunting with the effort. "It's stuck!"

"These switch boxes are locked, though," Curtis pointed out.

"All right, stand back," Rene ordered. Dinah did, and Rene aimed his gun at both locks, shooting them off. "There we go."

"OK," Curtis hopped over the tracks, examining one of the boxes. "Well, Plan B . . . actually, there is no Plan B because Cayden James has completely overwritten everything we could do here. Maybe Plan C will be – "

"Guys," Dinah swallowed, seeing lights come down one of the tunnels.

"We could literally just start pulling things out till we get the right circuit."

"Guys!" Dinah yelled, eyes widening as both trains appeared.

"Pull it all out!" Curtis shouted, Rene scrambling to help. "Pull it all out!"

Dinah gulped, watching both trains come closer. "It's not working! Hurry!"

"Hey, what's Plan D?" Rene asked, turning around.

"There is no Plan D!" Curtis yelled.

"What?!"

Dinah set her jaw, about to step forward when someone suddenly landed in front of her, landing in a perfect crouch. She was able to see a woman's form, dressed in a bodysuit of dark purple and black, before she threw out one hand towards the train on her track, a shimmering ball of blue energy surrounding her. Dinah shielded her eyes as the train lights hit her, then grimaced when she heard the squeal of brakes and metal on metal, able to see sparks spray everywhere. The train on their other side flew right past, and the train on their tracks stopped just in front of the swirling forcefield.

Dinah lowered her arm in disbelief, watching the forcefield wink out of existence. The woman in front of her lowered her arm, looking up at the train before turning around and examining the three vigilantes. Getting the feeling that she was under a microscope, Dinah lifted her chin, refusing to back down. The woman arched one eyebrow, then bent her knees and shot back into the sky, flying off without another word. "What the hell?" Rene breathed.

"Was that Saturn on her belt?" Curtis stammered.

Dinah narrowed her eyes. If that woman was an alien, then she knew exactly where she had to have come from.

***

"All right, I'm gonna go see what's going on," the bus driver stood up. "You kids stay put."

William watched him exit the bus, trying to see where he went until he was out of sight, then looked back down at his book. "I'm bored, Clayton!" Donnie announced. "Read us a story!"

William closed his eyes, trying not to lose his temper, when a loud bang and a rush of light made him fling his book up to block his eyes. When he looked back out the window, flames were rushing from one of the pipes in front of the bus. He swallowed, then stood up, taking control. "We have to get out of here!" he looked around. "Everyone, stay calm and follow me!"

He headed out of his seat and towards the front, relieved when all the kids followed him. However, just as he reached the front, the flame line extended past the nose of the bus. William swallowed, then turned around. 'We have to get out the back!"

All the kids parted to let him go through first, and William swallowed when he saw the explosions going off throughout the tunnel. "We can still make it out," he said, looking down at the door. It took two kicks, but he managed to get the door open. "OK, come on," he backed up. "Move it, move it! You two, help them out!" he ordered the first two boys out. "Hurry, hurry!" He looked out after the last of the kids in line jumped out, but he paused, not seeing one person. "Donnie," he seethed, turning around and running back inside. "We need to get out of here!" he shook his shoulders hard. "Come on, come on!"

"I can't," he shook his head rapidly. "I can't!"

"We need to go!" William yelled. "Go!" Donnie finally scrambled out of his seat, heading for the back, and William pushed him out first, jumping down after him. "I need you to go. Go!"

Donnie started to run, but before he could go very far, an explosion happened right above them, and William hastily backed up, covering his eyes, narrowly avoiding the traffic sign that crashed inches in front of him, blocking his way past the bus. Rubble crumbled down after it and in front of the bus, and William swallowed, hearing Donnie yell his name and frantically pound on the sign.

***

"I'm heading for the tunnel now!" Imra's voice called.

"Checkmate's just arrived," Winn chimed in.

"Martian Manhunter and Black Wolf are on their way!" Lena called.

Kara and Mon-El rammed their feet into the pavement, and carrying Oliver and Dig respectively, they landed in the tunnel on top of a crashed tour bus. Kara looked back and forth frantically, grounded only by Oliver's hand on her shoulder. "Concentrate," he told her.

Kara took a deep breath, using her x-ray vision. She found William's bus easily, with students rushing to safety, then found one student hover by rubble blocking the bus off. She swallowed, not seeing William until she used her x-ray vision further, and she swayed on her feet. "Oh, Rao. He's stuck!"

"Where?" Oliver demanded.

"There!" Kara pointed, Mon-El hovering in the air to see. "The bus is over there!"

"We'll get him," Mon-El looked over at Oliver, who nodded in confirmation. "Get the fires out!"

Dig looked up, seeing Imra drop down through the hole they made. "We'll take care of everyone else!"

Kara looked back towards the bus, and Oliver cupped her cheek, turning her back to him, brushing away the few tears that were falling, several more filling her eyes. "We'll get him," he promised.

Kara swallowed hard, then nodded, jumping off the bus and flying through the tunnel, using her freeze breath to put out the worst of the fires. Oliver and Mon-El used the crashed cars to make their way through the tunnel, Imra and Dig jumping down to run and find civilians.

One woman was looking around frantically when there was a warping noise, and two figures bathed in red light dropped down through the tunnel. J'onn flew off to find more civilians, and Alex quickly grabbed the woman, pulling her behind a car, just in time to avoid an explosion. Alex peered over the top of the car, seeing where J'onn was heading, then carefully turned the woman in that direction. "Go for the door," she pointed. "Go for the door! Move!"

"Come on, come on!" Dig took up the call from the other side of the tunnel. "Get to the door! Move, move!"

Kara continued to make her way through the tunnel, blowing out fires as quickly as she could, Imra and J'onn rescuing civilians that were trapped. Mon-El ducked underneath Imra as she flew past with some of the students, and he jumped down behind the lone student that remained, tugging helplessly at the exit sign in front of the bus. "Hey," he put a hand on his shoulder, stopping him. "Where's William Clayton?"

"He's stuck behind the sign," the student stammered.

"Go," Mon-El pointed, waving at Imra as she landed on a nearby truck, Oliver jumping off a car to join the Daxamite. "Go!"

Imra let the student go in front of her, running after him as J'onn rammed into the exit door of the tunnel. Dig and Alex guided everyone through, J'onn flying through to make sure everyone got out safely. Oliver turned back to the sign, grabbing the end of it. "Watch my back!"

Mon-El nodded, hovering into the air and double checking to make sure no one else was in the tunnel as Oliver grimaced, pushing the sign aside. The moment he saw William peek out from behind a pipe, he sighed in relief. "Come on!" he ordered.

William was up in an instant and bolted past him. Oliver ran after him, seeing Mon-El herd a few stragglers towards the nearest exit. More explosions were causing more fires, and Oliver lost sight of his fiancée as she soared back and forth, Imra throwing up a forcefield to try and contain some of the blast.

Something rumbled under their feet, and Oliver grabbed William, yanking him into an office nearby. Two figures crashed into them behind them, then blue surrounded their vision just as a huge explosion engulfed the tunnel behind them. Oliver winced, expecting glass to shower them, but the arms around him tightened protectively. He hesitantly looked up to see one of Imra's forcefields surrounding them, as well as Kara and Mon-El, his fiancée directly in front of the exit, Mon-El protecting William from the other side. He turned to check on his son, who was looking up at all three of them with wide eyes. "William," he reached down. "William. You OK?"

Imra ran inside, throwing up another forcefield in front of the exit, wincing as another explosion went off. Kara swallowed hard, turning to face William as he shakily sat up. "William?" she whispered. "Are you all right?"

William just looked between all of them before focusing on Oliver. "Dad?" he whispered.

***

"Oh, thank God," Winn sighed in relief as everyone sans Kara piled out of the elevator.

"Any civilian casualties?" Laurel asked.

"We got everyone out safely," Dig shook his head.

"Kara's back helping with the clean-up," Alex added.

"Unfortunately, that tunnel was the last way out of the city," Felicity sighed.

William looked around the bunker, then up at everyone working. "You said you weren't the Green Arrow anymore," he finally told Oliver.

"John did take over for me, but he got injured," Oliver explained, wincing and knowing he had a lot of explaining to do.

William just gave him a look. "He's not injured anymore," he nodded to Dig.

"No, he's not," he agreed.

"I think I knew," William bit his lip, looking up at Slade, Malcolm, and Laurel, all three clad in their suits. "When I heard at school there were new vigilantes working with the Green Arrow. It sounded like them. They weren't out there before."

Oliver sighed. "We've lost the other members of our team, William, and while I wish Kara's team could be here 24/7, they can't be, and they're the ones I trust."

"I know," William nodded, and Oliver paused in what he was about to say. He hadn't expected that from his son. "They've proven it. Everyone around me is in the hero business now." He shook his head, looking at the mannequins on the wall. "It's just . . . Kara lied to me, too."

And if that didn't hurt, Oliver didn't know what did. He opened and closed his mouth a few times, trying to figure out what to say, seeing J'onn, Alex, and Winn exchange worried looks. He found relief in looking at the time, taking a deep breath. "I need to go meet your aunt Thea," he told William. "Could you please hang here?"

William silently nodded, still looking at the mannequins. Oliver gave his friends a helpless look, heading back to change out of his suit, and Imra quickly covered Querl's mouth before he could say anything that could hurt the situation more.

***

"A woman with Saturn on her belt," Dinah repeated as she entered headquarters, scowling. "What's the media going to call her, Saturn Girl?"

"Actually, that's not bad," Rene tilted his head back and forth.

Dinah threw him a nasty look, but Curtis cleared his throat. "Speaking of names, I really have to say that I think we should change ours. Like, what do you think about the Outsiders?"

Dinah paused, then snorted. "Um, I think it was a really awesome book." Rene snickered at Curtis's offended look, and Dinah dropped down onto one of the couches. "You know, guys, talking to Felicity actually was a good idea. I mean, if she hadn't given us that intel, those people would be dead."

Curtis winced. "About that . . . I got that information from Vincent Sobel."

Rene all but gawked at him, and Dinah straightened, narrowing her eyes. "I'm sorry, what?"

"I didn't trust him at first either, OK? But I called Felicity to confirm if his intel checked out, and it did, clearly."

"And that's why you were late getting back here earlier," Dinah scowled. "You were talking to him?"

"So you didn't bother telling us?" Rene scoffed. "How very Oliver Queen of you."

"I had to get all the information first before I looped you guys in!" Curtis defended himself. "Then once I did have all the information, we had to stop a subway collision. Except that got stopped by Saturn Girl, but now here I am, telling you guys."

"Telling us what?" Dinah demanded. "Why would Vincent help us?"

"He says he's a double agent working to take down Cayden James from the inside," Curtis answered.

Dinah rolled her eyes in disbelief, but Rene mulled it over. "I mean, that does track," he admitted. "I mean, the guy used to be undercover."

"Which makes him a professional liar," Dinah countered. "He has had so many opportunities to tell me he is a double agent. Why hasn't he? He just somehow forgot to mention it?"

"He says he tried to," Curtis shrugged.

Dinah stared at him in disbelief. "That is absolute crap."

"Maybe, but if he turns out to be legit, he could offer a tactical advantage that we can't turn down," Rene pointed out.

"Well, I can," Dinah retorted. "Because I will never work with him again, ever."

"Well, obviously Curtis and I disagree, so," Rene began.

"So nothing," Dinah hissed, standing up and glaring between them both. "We all have to agree, don't we? Or are we just screwing consensus now?"

She stormed past them both, pushing them out of her way, and the two men exchanged exasperated looks.

***

"OK, so maybe you can get some of your officers and have them stand over there?" Thea pointed out a location to the officer she was speaking to.

"You bet," he nodded.

"That'd be great. Thank you."

"Hey," Quentin came up behind her, two steaming cups in his hands. "Thought that would put a little extra pep in your step."

Thea sighed in relief, taking one of the drinks. "You are my savior."

"What, me or the coffee?" Quentin snorted.

"Why can't it just be both?"

"Hey," Oliver walked up to them, hand in hand with Kara. "How are things going here?"

"Hi," Thea gave them a weak smile.

"Well, it's not good," Quentin shook his head. "No, we got no customers at all."

"There's so much happening right now that people are too scared to even come to the safe zones," Thea nodded.

"And worse still, I got cops standing around here doing nothing when they could be out there helping people," Quentin added. "I would like to redeploy them."

"No," Oliver shook his head. "If – if we get people here, then we don't need to worry about protecting them out there. We have no idea where Cayden James is going to attack next. The best thing that we can do for the city is to get people to the safe zones."

Kara perked up suddenly. "So tell the people that," she said, looking up at her fiancé. "I have an idea."

***

I kind of wanted to make Imra sniff and just toss her head like she didn't give a care in the world for NTA, but that might have made her look too bitchy to them.

I also believe that, since most of William's "family" is in the superhero business, he wouldn't be as crushed by Oliver's revelation like he was in the actual show. I think what would have hurt him more is that Kara was in on the lie as well.

I've only got a bit more of the next part to write, so fingers crossed that'll get updated tonight!