Since Zoom arrived on Earth, metahumans have begun to rise up after the secondary accelerator explosion caused by Wells. The metahumans seem to think the Flash is gone, as he hasn't been seen in over a day.

The Watcher looked down on metahumans running amok in the city, causing widespread destruction. The police struggled to contain them, but their efforts seemed futile against these powerful individuals. Thankfully, they had a handful of help from the likes of Spid-Y, Spider-Woman, Spider-Man, Iceman, Firestar, and of course the Flash.

"We're used to taking these guys down one at a time, not 100 at a time," Barry says to the kids as they get out of the elevator.

"And yet, you don't seem to be breaking a sweat," Angelica said to him.

"I know we can do it," Barry says as he walked off to check on Caitlin.

"So, where's MJ gone?" Angelica asked Peter. "I haven't seen her since the other night."

"She went home and explained everything to her aunt." Peter sighed and hoped he had made the right decision on this. "And I mean...everything."

Bobby, Angelica, and even Miles froze when they heard that news. "Wait, you're gonna let MJ tell her aunt everything?" Miles asked.

"Yeah," Peter confirmed with a nod. "I thought that, after everything, especially after her kidnapping, everything should be put out on the table. She deserves to know everything; I mean MJ and her sister already know. So what's really the harm?"

"You mean aside from her keeping you from ever seeing her again?" asked Bobby.

Peter froze as he considered that possibility. "I'll admit, we both knew that was a concern, but we figured it was worth the risk." He also had to admit he had a backup plan. "Also, May is there so she can work as my defense while we're fighting these metahumans."

Barry had made his way to the labs where he saw Caitlin was still resting. As he watched her, Cisco came into Caitlin's lab and smiled at the two of them before patting Barry on the shoulder.

"Went out like a light, huh?"

"Yeah," Barry said, running a finger across Caitlin's cheek, watching her eyelids flutter and a slight smile passes across her face as he moved his hand to her hair, stroking it gently. "Jay really did a number on her."

Cisco huffed out a humorless laugh. "It's not like he exactly used kid gloves on the rest of us."

Barry sighed, and gently began to extract himself from around Caitlin. She murmured in her sleep but soon settled back down against the pillows.

"She'll be okay," Barry said, moving to stand beside Cisco instead. "She just needs time." He turned and glanced at Cisco. "And once we do that, we'll finally bring Zoom down."

"Yeah," Cisco said, giving him a look. "Because the universe is on our side, huh?" Barry sighed, and Cisco gave him a sympathetic smile. "Listen, man..."

Suddenly, Cisco's face went completely blank. He ended up just starring off and Barry knew that was usually when he started to get visions.

Barry watched him, frowning. "Cisco?"

There was no response.

"Cisco...?" Barry tried again, waving a hand in front of his face. "Hey, are you okay? Did you just vibe?"

Cisco shook his head slowly as if to clear it. "Yeah," he breathed.

"What did you see?"

"I saw a bird..." Cisco murmured, squinting a little. "Like a dead bird."

Before Barry could answer, an alarm went off on one of the computers. The boys exchanged glances and ran out of Caitlin's lab.

"Mercury Labs," Barry said, reading the computer screen.

"It's under attack."

"Alright," Barry said and ran towards his suit.

On the way to the location, he grabbed Peter, Miles, Bobby, and Angelica and raced to the location. When they reached it, they noticed that the entire building was starting to shatter like its foundation was starting to collapse.

"Okay, this is bad," Barry commented in worry.

"What if I shot some ice to strengthen the foundation?" Bobby questioned.

"Right idea, wrong solution," Peter told his friend. "Me and Miles will go in, web everyone we can. Angelica, you fly in and get everyone you can out with Barry. Bobby, use your snow to cushion the ground so anyone we miss gets a soft landing."

"On it." Everyone replied as they did exactly that.

Barry sped into the building and began to use the crumbling foundation as stairs to make his way up to rescue people who were going to be crushed in the rubble. Angelica flew around and managed to save a handful of people without burning them with her powers while they were falling. Bobby got to work he quickly blasted the foundation of the building with snow to cushion the cloud of smoke starting to form. Miles and Peter were working with all of their speed running across the crumbling building to web up as many people as they can. They ran and even webbed each other to either cushion the fall or protect the people they were currently carrying on their backs. Peter and Miles managed to get to the street and managed to carry about half a dozen people out of the rubble.

Meanwhile, Barry found Dr. McGee falling through a sea of wreckage. The floor had crumbled, and pieces of the wall were beginning to fall through the gaping holes. Barry ran through the mess, skidding across slabs of stone and around stray wires until he reached the scientist.

He grabbed her around the waist and sprinted her outside to safety. It didn't take long for the entire building of Mercury Labs to come crumbling down.

"Thank you, Mr. Allen," Dr. McGee said softly.

Barry spun to her, shocked.

Dr. McGee rolled her eyes. "I'm not stupid."

He grinned, and the two of them turned back to watch the rest of the building settle into a pile of rubble.

When Tina and everyone else returned to STAR Labs, Caitlin had woken up. Someone had brought her a change of clothes—a gray STAR Labs shirt, sweatshirt, and jeans—and she had thrown her hair into a messy ponytail. She looked impossibly adorable, a little pale, maybe, with bangs falling in her face like she was in high school again.

As Tina walked into the Cortex, Barry pulled Caitlin in for another hug. She kissed his cheek, just as happy to see him.

"How are you doing?"Barry asked earnestly, gazing deeply into her eyes.

She gave him a weak smile. "A lot better, actually. I'm still a bit tired... but better."

"Okay," he nodded, squeezing her shoulders. "Let me know if you need anything, okay? Anything at all."

She nodded her agreement and the two of them walked into the Cortex.

"So," Barry started, pulling off his gloves. "How did you know-"

"You're real identity?" Dr. McGee finished.

"Yeah."

"Oh come on, Barry," she said. "I'm a scientist. We're paid to be perceptive. And you're always a little too well informed when things go pear-shaped in this city."

Barry snickered, and Dr. McGee turned to Henry. "But... I don't think we've met before," she said. "Dr. Christina McGee."

"Dr. Henry Allen," Henry said, shaking her hand. "I'm Barry and Peter's father."

Okay," said Peter, interrupting whatever was going on. "Now that the cat's out of the bag, you didn't happen to see who it was who caused your building to collapse?"

Dr. McGee dropped Henry's hand and shook her head. "I didn't see anything—it all happened too fast."

"Maybe the security camera's caught something?" Gwen suggested softly.

Barry nodded and Henry leaned forward. "Can we access them?"

"Mercury Labs does have a crash-survivable memory unit," Dr. McGee supplied.

"A what?" MJ questioned.

"Virtually a black box for buildings," Harry elaborated for her. "It will have stored all the security footage right up until the building collapsed."

"That's a thing?" MJ was surprised to hear.

"Okey, great, I'll go find it," Barry offered. "This wasn't some random metahuman. Whenever Mercury Labs has been targeted in the past, there's always been a specific reason."

"Yeah," Cisco agreed. "Someone's after something."

"Yes, and that someone's probably Zoom," Caitlin added.

Barry's mouth shifted unhappily to the side. He hadn't wanted the conversation or Caitlin's thoughts to go anywhere near Zoom for as long as physically possible considering how relevant the malefactor was in their lives.

"There may be one more possibility," Dr. McGee said. "A few months ago, I saw Harrison Wells running out of my facility. I know it sounds crazy, but I'm certain it was him. Is there any way that he could have anything to do with this?"

There was an awkward silence as everyone exchanged glances. Barry opened his mouth to speak, but someone else cut him off.

"A few months ago, sure."

Everyone turned to find Wells standing in the doorway, holding a mug of coffee. Dr. McGee's mouth dropped open.

"Now?" Wells shook his head. "No."

Barry winced. "Yeah, there are a few more things that we could catch you up on."

An alert from one of Cisco's apps brought the team rushing into the Cortex. Up on one of the screens, a picture of a building with a lightning bolt blazoned on the front.

"What is that?" Barry demanded.

"It's CCPD," Cisco responded, leaning against the desk.

"Zoom."

"Barry," Henry spoke up. "Don't do it-"

Barry had already flashed off down the hallway, running towards the precinct. He came to a stop in the entranceway of his lab, keeping close to the wall.

Jay's back was to him. He was standing at Barry's bulletin board, staring at a few pieces of pinned paper. "You know," he said softly. "I never saw the crime scene photos of my mother's murder. But I guess I didn't need to. Too delicate, I suppose."

He turned slowly, the dark lightning in Barry's lab making him look like a murderer in a horror movie. Barry supposed the comparison wasn't so far off.

"Not just a hologram, are you Flash?" he asked, peering a Barry. "Interesting."

Barry shook his head. The rage that was bubbling inside of him at seeing the man who had caused Caitlin so much pain was getting hard to control. "I know you didn't call me up here just to banter. Let's finish this. Right now."

"Actually, I did," Jay said. "I called you up here to tell you that you and your brother can't keep running from one meta to the next. Round and around, like a dog chasing its tail."

"We'll do whatever it takes to stop you." Barry knew he and Peter were going to do all it takes to finish this war.

"If only that were good enough." Jay sighed. "Because here's the thing. I know you. I know you, and I know what's holding you back. You and me... we're really just the same person."

Barry scoffed. He had started walking while Jay was still talking, and now he faced him, both of them against the wall. "Yeah, you keep saying that. It's not gonna make it true."

"You'll see. We are." Jay turned back to the board. "Same tragic background," he offered, hand on the newspaper article, the story showing his mother's death. "Same reason for running. The same desire to be the fastest. To be the best. The difference? You think your anger is dirty somehow. You want to be seen as pure; the hero. Doesn't it get exhausting? Doesn't it get exhausting, Barry?! It was exhausting playing Jay- believe me."

The rage had cooled to something harder. Something more substantial.

Fury.

"I'm not pretending."

He jolted forward, about to run, but the sound of a crumbling stone made him pause.

"Now, if it were me," Jay said, pointing one clawed finger out the window. "I'd let that building tumble without a second thought, but you... you'll never let that happen, will you? That's why I'm gonna beat you, Barry. Because you always have to be the hero."

The roof of the building crumbled inwards. Barry's gaze shot from Jay's face, there, and then back again.

"While you're playing the good little boy," Jay said, smirking. "I'll be busy winning."

Barry knew he couldn't stand by and let this happen, so he zipped off down the street. When he made it to the scene, he was a little shocked to see that Spider-Woman was already there, working to keep the building from collapsing. Seeing that she was giving him some valuable time, Barry sped inside the building and began evacuating its occupants.

Barry returned to STAR Labs with a sigh. He told everyone about what he had been up to; he was getting tired of dealing with all these crumbling buildings, and so were the others.

"We can't let Zoom destroy another building," Barry tells everyone. "We need to take him down."

"You want to jump to the big bad at the end of the game?" Bobby asks in confusion. "Look, I hate Zoom as much as the next guy. I mean, he kidnapped my cousin, your fiancée, and my best friend's girlfriend."

"But Zoom has an army of metahumans across the city," Peter said sadly. "He's not going to go down easily."

"Yeah, this is basically the same as what happened on our Earth," said Angelica sadly. "He knows what he's doing."

Harry suddenly thought of something when Angelica reminded him of it. "Wait, you said your Earth?"

"Yeah," Angelica said, almost as if she were reminding him. "Earth-2. My home."

"No, I mean, all of these metahumans have come from Earth-2, or at least a major majority of them," Harry explained and looked over to Cisco. "And you said your glasses didn't work there."

"My powers," Cisco confirmed what he was saying.

"Because we vibrate at a different frequency," Wells confirms.

"That's also why I was...well, I guess "glitching" is a good word to describe it, when I went to that other world," Barry muttered, remembering his time in the parallel universe.

"I think I'm starting to get what you're saying." Gwen was beginning to follow.

"Can the non-geniuses get a dumbed-down version of the explanation?" MJ pleaded with them.

"Basically, we create a vibrational technology that could take down all of the Earth-2 metahumans at once," Cisco explained simply.

"Can you do that?" Miles asks.

"I like it," Wells admitted.

"Me, too," Cisco confirmed.

"I'll help." Caitlin offers.

Peter sighed and realized that the city still needed help. "Well, I'll take Miles and patrol the city."

"I'll help." Angelica offered.

"And I'll head over to MJ's place to see how it went with Anna and May after she learns everything," Bobby offered as he walked off. "You know, I'm one of the few with heads that they won't chew out."

While everyone else was doing that, Cisco, Harry, Caitlin, and Wells were all working on a seismic frequency to stop all of Zoom's men at once. Meanwhile, MJ was watching from a distance as Cisco suddenly threw his marker across the room.

MJ said, "I thought throwing things was Wells' way of dealing with stress."

"That's how frustrated I am," Cisco says, sighing and rubbing his forehead. "I'm just running out of ideas as to how to make this work." He replies, slapping his hands against the table. The constant visions of dead birds weren't exactly helping either. "Where's Barry? I need some of that walking-on sunshine thing he's got going on."

Caitlin just smiles at her friend when she turns around and sees Zoom. "No! No!" she shouts, seeing her captor had returned. "Get away!"

Cisco and MJ see her, and they know she's frightened, but there's nobody else there. But that's when it dawned on MJ exactly what was happening and raced to her side.

MJ said, looking at her intently. "Cait, look at me." She saw that it wasn't helping. "Breathe. You're going to be okay, all right?" She watched as Caitlin began to slowly calm down. "I know what you think you see is real, but it's not. Jay is not here. You're safe."

Caitlin's shaky breathing was beginning to slow as she sighed and saw Zoom vanish. She sighed in relief and was still shaking; MJ tried to comfort her by rubbing her arms, seeing as that had helped before.

"You okay now?" MJ asks.

"I...I thought I saw him," Caitlin confessed.

"I know," MJ assured her.

"How...how did you know what to do?" Caitlin was a little confused.

MJ sighed as she thought of her childhood. "Well, we went over the bullet points of my childhood on Earth-2, but...well, daddy was a recurring nightmare for me. Waking up one day, even after getting halfway across the country, expecting him to be standing over me and he'd have his belt in his hand..." She even shuddered at the reminder of her father a little. "My dad took something from me...he took away my ability to feel safe."

"How'd you get over it?" Caitlin wonders.

MJ chuckled as she remembered it. "Well, I went through a hard, and I do mean hard, rebellious phase." She even blushed as she moved her hair out of her face. "Then when I moved here, that particle accelerator blew, and I met a sweet, kind-hearted nerd who happened to be my neighbor."

Caitlin smiled and said she was glad Peter had been there for her during the hard times. "Wait, wasn't he with Gwen at the time?"

"Oh, I wasn't referring to Peter," MJ corrected Caitlin. "I meant Spider-Man. Of course, it took me a while to realize they were one and the same, but Spider-Man, his bravery, and his desire to help people, just…inspired me. It gave me hope." She smiled as she then became distant. "We tend to forget that, as much as we keep these heroes grounded in reality, they do the same for us."

Caitlin smiled as she then pulled MJ in for a hug. MJ accepted the gesture and hugged the woman back.

Barry was called away from his chat with Wally by another metahuman alert. Skidding to a stop in the middle of an empty city intersection, street lamps reflected off the pavement. Peter and Bobby were in the area as they were the only ones to respond. Angelica was fighting her universe's Tombstone, while Miles was fighting Lizard.

That was when Barry's blood went cold. For there stood Laurel Lance.

"Why is it always so difficult to choose?" she said, smiling coyly at him.

"Barry, what is it?" Cisco asked through the com.

"It's..." Barry's voice trailed off. "It's Laurel Lance."

Laurel just smirked as she took a few steps toward him.

"Laurel."

"You know her doppelgänger?" Peter asks his brother.

"Yeah, we met about three years ago," Barry confirmed.

"Okay..." Bobby wasn't sure how to take that. "Was she an ex or something?"

"What?" Barry was shocked to hear that question. "No."

Bobby raised his hands in defense. "I'm just asking."

"So," he asked, eyeing her up and down warily. "What should I call you?"

"You can call me... the Black Siren," Laurel said. "Zoom mentioned that you might be showing up."

"Well if he told you what we can do, you should look more afraid," Barry bluffed.

Laurel laughed, rolling her eyes. "And so should you."

Peter asked, "Why did you take down Mercury Labs?"

"Because I like to watch things crumble and fall," The Black Siren had stopped circling and began to advance. "Guess what? You're next."

On that ominous note, she opened her mouth and let out a piercing scream. The three boys were thrown backward, their heads hitting the pavement as their ears rang like splitting church bells. Peter felt his senses alerting him, but that giant blast was too much for him to even jump to avoid.

He rolled on the ground, groaning, hands over his ears, but didn't have any time to get up before Laurel screamed again.

A voice cut through the agony in his head. "Barry?" Caitlin asked, her voice small and scared. "Are you okay? Peter? Bobby?"

Wells released his breath and nodded at the computer. "Look. Anything over 200 decibels would kill a human."

Caitlin bit her lip. The computer read 250.

"Was that too loud?" Laurel asked as she stalked towards the three of them. He tried to struggle to his feet, ears ringing and head feeling like it was going to split in two. "Perhaps we should quiet things down a bit."

She punched Barry in the face, once, twice, then nailed his chest with a back spin kick.

He stumbled backward, disoriented, but before he could regain his balance Laurel had shoved him onto his back with a push kick. Peter then came in as he got up just in time to web her head and direct the sonic blast into the air. Bobby then jumped to his feet as he sent a giant blast of ice at her and sent her flying.

"You know...I thought Black Canary was supposed to be a better fighter," Peter mocked.

Out of nowhere, Laurel managed to send a sonic scream at the three before they could jump out of the way. They were flung back onto the ground, Laurel approaching and the screams becoming too much for even Bobby. His ice skin began to shatter. Out of nowhere, a silver car skidded across the street and slammed into Laurel. Barry's eyes widened in surprise, as he stared in horrified amazement while Laurel rolled across the ground, groaning.

The car door opened and Wally poked his head out. He gestured furiously to the team. "Get in!"

Barry stumbled to his feet with a painful groan, climbing into the car and hurriedly blurring his face so that Wally couldn't tell who he was.

They pulled out with a squeal of tires, Wally grinning widely the whole time. "Thought you guys might need a lift," he said.

"Yeah," Barry groaned, still panting from the fight. "Thanks."

Then he pulled together whatever strength he still had left and flashed out of the car. He grabbed Peter and Bobby in the process as he ran them back towards his friends at STAR Labs.

When Barry got back to STAR Labs, Caitlin was there to meet him in the hallway with a quick, tight hug. It had felt like an eternity of not being able to hug him, to touch him, to patch him up, and now she couldn't help but take every opportunity she got.

The four of them entered the Cortex, and Caitlin sat them down in chairs. She used a Q-Tip to wipe the blood from Barry's ears, sighing as she did so. Then, when she moved on to the others, she saw that Peter was already mostly healed and there wasn't much more she could do for him. However, Bobby seemed to be the one who got the worst of it, since he didn't have quick healing like the other two did. Add in how his ice skin was shattered, and she'd have to recommend benching Bobby for a while.

"Why do so many metahumans use sound as a weapon?" Caitlin wonders.

Bobby glanced up, everything still sounding foggy and muted. "WHAT!?" he asked, very loudly.

Caitlin laughed. "Nothing," she said, taking off her latex gloves and patting his shoulder. "You're gonna be fine. A bit of rest and some time for your ice side to heal..."

"Thanks," he murmured, a little quieter.

"So Wally just drove on up into the thick of it," Joe said, coming over from his spot in the doorway to face Barry. "That must have been some conversation you guys had. Seeing as how he did the opposite of what we wanted."

Barry sighed, sent Caitlin a slightly cheeky grin, and took off his gloves. "Guess I can hear now," he muttered.

Joe rolled his eyes. "Funny."

He talked to Barry for a moment while Caitlin put away her supplies, but soon he left, leaving the two of them alone.

Caitlin followed Barry up into her lab, reaching around his waist and resting her cheek on his shoulder. He smiled down at her, brushing her hair out of her face. "I love you."

"I love you, too," Caitlin whispered. "So much."

She cuddled a little closer, enjoying the silence and warmth of Barry simply holding her. But there was something they needed to talk about.

"Barry... do you really think we can win?"

Barry tilted his head, looking at her quizzically.

"I just- I just mean..." Caitlin bit her lip, unsure of how to phrase what she was trying to say. "Well, you seem so sure, and so confident, and so unafraid, and while it's really nice to know that at least one of us is positive about our outcome... I'm scared, Barry. I'm scared of what Zoom could do to you- of what any of the metas he brought over could do to you. I mean... you'd be dead if it wasn't for Wally-"

"And that's exactly why I am so confident about our chances, Cait," Barry jumped in.

Caitlin wrinkled her nose, confused. "Because of Wally?"

Barry laughed, kissed her nose, and sat down with her still wrapped in his arms. "Because of all of us," he said. "I have a team—Cisco, Peter, Angelica, Miles, Wally, Joe, Wells, Iris and Harry, and you. And I've been in the Speed Force. I've seen how things work. I have a different perspective on life than I did before, and I think that if we put our work into something that is going to do good, then we will be okay."

Caitlin nodded, tucking her head under his chin and sighing into his shirt.

"And I promise, Caitlin," Barry continued. "I will never let Zoom hurt you again."

At Star Labs, they're working on a frequency to ensure it works well enough. When they made their way to the basement, they saw the device once used to give Barry his powers back had already been transformed. It didn't look much different, but there were basically a dozen gigantic, makeshift-looking speakers set up around it...

"This is how we're going to defeat Zoom's army," Cisco explains.

Miles says, "By giving them all electroshock therapy?"

Cisco corrected him. "By giving them all dimensional shock therapy."

MJ says, "This is where the scientists dumb it down so the rest of us who struggled in school can understand."

"Fair enough," Cisco said. He knew he'd need to get used to it. "So all matter vibrates at its own unique frequency. You disrupt that frequency, you disrupt the matter."

"It's similar to opera singers shattering glass," Peter said.

"We found out that all Earth-2 people vibrate at their own, more erratic frequency," Harry added on.

Wells corrected him, "Higher frequency."

Cisco replies, "Different frequency."

"Higher." Wells corrects again.

"So I ran this all past Hartley, right? And he postulated that we could create a sort of dimensional tuning fork." Cisco gestured to what the device had been turned into.

"You didn't do it yourself." Wells reminded him.

"Just let me have this one, okay? Thank you." Cisco said and turned to the group. "So if Barry runs around the city, fast enough to create a refracting field, the device can send out a pulse that'll bounce off of it, split apart, and then collide with itself over and over."

"Amplifying it to an erratic frequency on the Earth-2 spectrum," Barry was following.

"Higher." Wells corrected.

"And when it hits anyone on Earth-2, it will disrupt their nervous system." Caitlin was following.

"Earth-2 meta's all go nighty night." Cisco proclaimed.

"Even Zoom?" Iris asks.

"Even Zoom," says Cisco.

"Wait, Angelica, Miles, Jessie, and Wells are from Earth-2. How do we plan to keep the pulse from hurting them?" Joe asks, hoping they had thought of something.

"Detective, I didn't know you cared." Wells said with a smile.

"Yes, you did," Joe jested.

Harry came in carrying several pairs of headphones. "We thought of that," he said. "That's why we designed these headphones to protect them from the pulses."

"Beats by Wells." Cisco joked.

That's when their alerts went off and they saw that there had been a high-frequency attack. That meant that Black Siren was going after another high-rise building again.

"It's Black Siren; she's in the high-rise development, on the west side of the city," Joe warns them.

"Hundreds of people live there," Gwen warns them.

"Ramon, we're up. Set that pulse up right now. Barry, you need to start generating the retraction field." Wells tells them.

"Black Siren can destroy that building at any moment," Barry states.

peter however raised his hand that was holding his phone up. "Actually...I've got something to help."

"You do?" MJ asked.

"Yes, since we actually know Laurel, something that I wasn't aware of..." Peter looked over towards Barry. "Thanks for filling me in on that. I decided to reach out to Artemis."

Bobby says, "The Green Arrow girl?"

"Yes, we've been in touch since the whole Vandal Savage incident," Peter explained. "We chat and I gave her some tips on the trick arrows she was working on."

"What did you reach out to her about?" Barry wonders.

"Let's just say Siren won't be a problem for us," Peter said with a smile.

Black Siren walked around the perimeter of the building, knowing she had a perfect vantage point from which to scream so her voice would carry far enough to kill dozens of people.

"I don't think I've ever taken down as many buildings at once." Siren comments.

"Maybe you're just not as powerful as your ink you are!" That was when Siren turned only to be smacked in the face by a staff.

Soren groaned as she then looked up to see who hit her and saw that it was Laurel Lance of Earth-1. She spun the staff in her hands and smiled down at her doppelgänger.

"Wow! I now know what it's like looking in a mirror." Laurel-1 commented as she looked her doppelgänger over.

"Oh, great," said Siren as she crawled up to her feet. Once there, she looked her doppelgänger over. "Nice outfit. Except, I would have gone with fishnets."

"Tried that once," Laurel commented as she spun the staff around her neck. "Now let's get this over with."

Laurel let out a Canary Cry, causing Siren to be taken down when she was flung across the room. However, she wasn't done yet; she got up and returned the gesture by screaming at Laurel. Laurel dodged the attack and used her staff for a direct approach. She spun around and smacked it against her head, but Siren blocked the attack with her hand. Laurel then returned with a kick to her face. Siren stumbled back as Laurel went in and smacked her doppelgänger across the face.

"Ooh, doppelgänger vs. doppelgänger! I wouldn't have ever thought of that!" Cisco said as he watched the camera footage of Laurel Lance fighting her doppelgänger.

"Alright, I've got this hooked up to whatever that thing is," Wells said as he gestured to the screen, which showed some sort of satellite-looking device.

"Finally, something we're both baffled by," Joe commented.

"I'm kidding," Wells stated. "That, my friend, is a 75KTSB 40,000-watt reverberating sound amplifier designed to singe out the operating frequency of every single Earth-2 being on this planet." There was beginning to be a mixture of confused faces, but there were a few who were following. "Which, went contained and magnified by the Flash creating a sound pressure wall around the city, will render all of us Earth-2 beings unconscious. Hence...the safety precautions."

Joe looked over at Henry, and MJ, and saw they were just as confused as he was. "I'm baffled by it," he admitted.

MJ muttered to herself, "I gotta start taking some science classes."

"Are we ready then?" Barry asks.

"Yes, we are," Wells said as he and Jesse put their headphones on.

Miles could tell as he held his hands over his ears and was covered by the headphones. Barry then sped off and began to run around the city as fast as he could to start taking down everyone in the city. It didn't take long for the sonic wall to begin to amplify everywhere in the city and cause everyone on Earth-2 to get a major headache.

Back with Laurel, she was flung into the air and smacked into some construction equipment, losing her staff in the process. She looked up and saw that Siren was approaching her with a strut in the process.

Well, I think that we learned which one of us is the better." Siren proclaimed, readying to kill her.

But that was when the Sonic wall came and ended up taking Siren down quickly. Laurel crawled to her feet as she watched her doppelgänger begin to fall to her knees. Then, as she picked up her staff, she spun it around and knocked her doppelgänger across the head.

Laurel sighed as she rubbed her head from the screaming. "Yeah, I guess we did."

The Watcher was grunting and wincing as the frequency wasn't exactly working as they had expected. Instead of attacking everyone from Earth-2, it was attacking anyone who was from a parallel universe. That included a certain interdimensional observer. The Watcher grunted and winced as he looked and saw that the frequency was beginning to rupture the barrier between all worlds.

"I... I can't keep doing this," the Watcher muttered as he looked around. "I can't keep fixing the ruptures in the universe."

Then the ominous voice of a certain monster echoed in his mind. "I will find you..."

The Watcher looked around frantically and wondered where he had come from. "No...NO! You will never escape!" He exclaimed. "I have to keep the barriers here." He began to get to work and tried to fix the ruptures. The frequency finally stopped and all the Earth-2 metahumans were knocked out. "I need to protect the branches."

"Oh, I'm sorry," Cisco said, turning his back to the door leading into the pipeline cell and watching the sound waves emanating from Black Siren's mouth. "What's that? I can't—I can't hear you through the double pane soundproof glass. It's kind of—it's kind of hard to make out what you're saying."

Everyone watched him with a sigh.

"You done flirting, Cisco?" Angelica asks him.

"Yeah, if that's what you call it?" Laurel scoffed as Cisco closed the door.

"Well, that's one hundred metahumans down," Miles said.

"You know, it's actually going to be a lot less trouble when we go home," Angelica commented. "All of these metas being rounded up here. Hey, do they even have a bathroom in there?"

"Of course, we're not monsters," Cisco promises as the pipeline closes. "So, you gonna tell your dad about your doppelgänger?"

"I wouldn't," Laurel said. "It's already been hard after what happened with Sara; if I told him this, I'm sure his head would explode." She then clapped her hands with a sigh. "Well... It's been fun. But my city needs me."

"Thanks for all your help," Barry told her.

"I'll give Ollie your regards." Laurel promised as she walked down the halls.

"So, what happened with Zoom?" Bobby wonders.

"Some of the meta-humans said that on Earth-2, he opened a breach and escaped. So, he must have returned to Earth-2." Barry sighed.

"Great," Angelica said. "At least that means that we have only one monster to worry about instead of an entire city's worth."

That night, Barry and his father drove back to Joe's house. Barry was a little disappointed; Caitlin had left STAR Labs in a hurry after a brief conversation with Cisco, and when he had texted her to see if she wanted company, she hadn't responded.

Henry followed him up the steps, and Barry opened the door. His mouth fell open a little. "Uh... what is this?"

"Blame Caitlin!" Cisco said immediately.

Caitlin grinned, blushing a little. "I just figured, since Henry's back for good, that we should celebrate. And since Zoom is gone and the city is quiet right now... Iris helped come up with the idea."

Iris nudged her, giggling, and Henry took off his coat. "I appreciate it, Caitlin and Iris. Thank you."

He walked farther into the house and smiled at the sight of Dr. McGee on the couch, talking with Jesse. "Hi, Tina."

"Hello Henry," she replied, a little awkwardly.

Jesse stood up immediately with a slightly-knowing smile and left them the couch.

"I hope you don't mind that I invited Dr. McGee," Caitlin said, scrunching up her nose a bit.

"Seems like... somebody's glad you did," Barry said with a grin.

Peter was there with May and Anna in the dining area. This was the first time that all of them had a moment to actually take in everything. MJ was also standing in the doorway, wondering what anyone would say to one another. Her sister was somewhere around the house, likely in the kitchen helping with the food.

"I'm sorry that I never really confessed this sooner. But I had a lot going on in the past two years." Peter apologized, feeling that it was a good place to start. "I wasn't exactly sure how to bring it up, and I was a little worried..."

"He was worried if you knew the truth, you'd prevent him from seeing me anymore." MJ defended her boyfriend. She then strolled over and wrapped her arms around Peter. "But nothing that happened to me was his fault. At least directly. We're just a magnet for disaster."

"That's not helping my case," Peter whispered to her.

"Shush, yes it is," MJ says. "I mean, Aunt Anna, I used to go and sneak out to go party, hang out with people that were bad for me. Peter's done nothing that would put me in harm's way; he's the one constantly getting me out of it."

"She does have a point." Harry actually never thought of it like that. "Spot's portal machine came from the goblins; my father kidnapped her. Most of the stuff was actually my dad's fault."

Anna sighed; she had had a hard enough argument with May earlier, and she didn't have much energy left for this conversation. "Well, I can see that trying to keep you two apart would be a mistake for both of you. Peter, if you can promise me that, at the end of the day, MJ is safe with you, I won't have a problem with your relationship."

Peter looked over at MJ who gave him a cheeky smile and pecked him on the cheek. "Come on, Tiger. Keep me alive, and I'll keep you from killing yourself."

Peter sighed and knew that it was going to be hard, but MJ made everything worth the risk. "I promise you, Ms. Watson, I'll keep her safe."

"Soup's on!" Iris called as she set the pot of food on the counter.

"Yes..." Cisco muttered. "Taking down a city full of monsters makes a man hungry." He walked up to the kitchen table, followed by Tina and Henry.

"First," Joe instructed, handing each of them wine glasses. Except for the teenagers, who were all given some soda. "A toast. To family."

He held up his glass and everyone else raised theirs with a responding "To family," and drank. Cisco took a long slurp of his drink. "That's my kind of toast: short and sweet; let's eat."

"And there is something else that I would like to disclose..." Henry told the group, getting them to look over towards him. "There is something that I was trying to tell you, and now seems like the best opportunity-"

Suddenly, Cisco's face went blank, and he dropped his glass, which shattered on the floor, causing Henry to stop talking. Everyone at the table exchanged looks as they realized Cisco had apparently zoned out and was now having another vision.

"Cisco?" Barry asked as Cisco blinked and seemed to come back to himself. He set his glass down on the counter. "What's wrong? What happened?"

Cisco seemed to be in shock. He stared down at the table, mute, until Gwen asked him what they were all thinking. "What did you see?"

Wally looked confused. "What do you mean 'see'?" he asked, reminding the rest of the team that he was never fully brought up to speed on all of their secret lives.

"Cisco gets visions," Caitlin explained. She felt a sickening sense of dread in her stomach, and reached out, taking Barry's hand.

"I don't understand," Cisco muttered. "Earth-2... splitting in half, straight down through the poles. Tell me I didn't just vibe the future. Please tell me I did not just see the end of the world."

His voice rose, frantic, scared, and everyone was silent.

That was when Peter's head buzzed like crazy, sending shivers down his spine and making his legs go weak. Miles was wondering what was wrong when his own senses took off, also alerting him to something else coming. Then the entire group jumped as a black figure rushed into the room and grabbed Henry Allen around the neck.

"Our story continues," Zoom growled, Henry struggling against his grasp. "Flash."

Bobby got ready to blast him as he summoned a powerful blast of mist and aimed it at Zoom. Angelica did the same as she summoned as much heat as she could without hurting anyone around her and threw several fireballs at him. But before the blast of ice or fire could hit Zoom, he was off, and Barry wasn't far behind.

"Henry!" Tina yelled, and Caitlin clapped a hand over her mouth, white to the tip of her nose.

Peter froze in fear as he wondered what was about to happen. His father had been kidnapped by the monster they were trying to stop. And he didn't even know how it would end, because he couldn't keep up.

Barry followed Zoom through the streets of Central City, faster than he had ever gone before.

He was afraid; he was terrified. His worst enemy was his father, and he didn't see any reason why Zoom would spare him. This couldn't be happening - not now, not when everything seemed like it was finally going to be okay for once.

They ended up at Barry's old house, and he stepped into the open doorway, legs shaking. "Dad. Dad?"

He rounded a corner and there was his dad. But Zoom was behind him, holding him around the neck, glaring at him.

Jay said, "It's poetic. Returning to your childhood home."

Barry's body went leaden with dread. He knew exactly what was going to happen and he didn't think he could stop it. "Jay... don't do this. I'm begging you - I'm begging you! Take me. Kill me!"

"NO!" Henry yelled forcefully.

"You still won't believe that you and I are the same," Jay said darkly.

"Please- please no-" Barry cried, tears sliding down his cheeks.

Henry looked at Barry and spoke softly. "Barry, look at me."

"So I'm gonna have to make you believe me," Zoom continued.

"Whatever happens, you and Peter have made me the happiest father-"

"Dad," Barry pleaded. "Please, no."

"This time, you're going to watch your parent die just like I did," Zoom growled.

"NO-"

"And it's gonna make you just. Like. ME!"

He stepped back, behind Henry, and Barry's father met him with one last smile. "You're mother and I love you and-"

"JAY!"

Jay slammed his vibrating fist into Henry's back. His hand extended its way out of his chest.

"No! No!" Barry screamed, falling to his knees as his father's lifeless body crumpled to the ground. "Noooooo!"