The last part of World's Finest isn't going to be that long. I've also added an alternate way that Barry could have defeated Leslie. Do you think it could have worked? Tell me what you think. As always, my co-authors BrightBurn1985 and Bartholomew Henry Allen deserve some credit in the making of this story.

Disclaimer: I don't own The Flash or anything else Arrowverse related.

Kara and Barry returned to the DEO to better prepare for their next encounter with the villainess duo. Both of them would be able to easily keep up with Livewire, but Silver Banshee would complicate things. Luckily Barry had a lot of experience with people using sound as a weapon.

Barry was building a pair of ear plugs that would be able to neutralize any sounds reaching 140 decibels or over. The average amount before it becomes harmful to humans. Hopefully they would hold up.

"So on my Earth, we had this villain named the Pied Piper," Barry explained.

"That's a good name," Kara complimented him.

"Thanks. So he had these gauntlets that allowed him to emit high frequency blasts. He used them to level a building. And my friend Laurel is a hero as well. We call her the Black Canary. She has a choker that amplifies the volume of her voice, giving her similar abilities to Siobhan."

"Sure these things can handle her?" Kara asked.

"Pretty sure. Don't quote me on that,"

It wasn't long before Leslie and Siobhan appeared once again, challenging Kara and Barry in the middle of a public area. Cat Grant had been taken hostage in order to ensure they would make an appearance.

With the ear plugs, Siobhan's power was easily negated, making her a simple hindrance. That still left the problem of getting to her as her screech managed to push even Kara back, but Kara would manage to find her way in.

Barry was left to take on Leslie. With their advantage taken away with her partner's power being almost useless, she tried to flee. But Barry was quick to follow her, trailing after the sparks of electricity and forcing her out. Her lightning blasts were dodged with ease, but Barry couldn't get to her without risk of injuring himself.

Barry decided to try something. He circled around her, creating a small storm with Livewire in the centre. His own lightning trail fully circled around her. Leslie tried to blast Barry away, but her own powers simply assimilated with Barry's.

Barry's powers acted as the electrons circling Livewire. With her powers, Leslie was a wire with electrons flowing within her, but also alongside her, in constant rotation. Barry was following the rotation with his own lightning, disrupting Leslie's control.

Leslie wasn't sure of herself what was going on, but she knew Barry had done something that prevented her from attacking him. And with the tornado, it was sucking out the oxygen she needed to breathe. She would black out if something didn't happen soon.

In a desperate attempt to get the hero's attention off of her, Leslie shot upward, hoping it would remain unaffected. To her luck, her aim kept true, and was on a direct course to a nearby helicopter.

Kara saw this and sent a punch at Siobhan with all her strength, but left to try to intercept the lightning before it harmed anyone else. She blocked the blast with her body, but she collapsed afterward.

Livewire promptly collapsed from lack of oxygen before she could do any more damage.

Kara slowly pushed herself off the ground, her body still wracking with spasms from the lightning.

A crowd gathered around her and slowly applauded her for her brave actions and a man came up to her and offered her his hand.

"Thank you Supergirl," the man said. "You were willing to sacrifice yourself for us. I can't express how grateful we are that you are willing to save us, no matter what,"

Barry arrived at where she was to make sure she was okay. Only to see everyone smiling and cheering for their heroine as she took the man's hand and pulled herself up. Siobhan had already long since been rendered unconscious and carted off to be put in a cage where she wouldn't be able to escape along with Leslie.

Barry and Kara were back in the field where they first met. Barry had finally come up with an idea that could potentially bring him back to his own Earth.

"So how do we do this?" Kara asked.

"I got the idea watching Livewire and Silver Banshee team up." Barry said. "We combine our powers. We both run at the same speed, and you use your strength to chuck me forward, and our combined speeds may let me break the dimensional barrier and return home,"

"So like a race?" Kara asked dubiously.

"I guess so," Barry laughed. "Think you can keep up Girl of Steel?"

"Just you watch Scarlet Speedster," Kara laughed alongside him. "I'm really gonna miss you Barry Allen,"

"So am I Kara Danvers. Or Kara Zor-El. Which is your alien name. Cause you're an alien, which I think is pretty cool," Barry teased. "I think James Olsen thinks so too,"

"You're just saying that," Kara waved him off.

"I'm serious Kara. He really likes you. I've been watching the two of you all day, and I can safely say that he's totally into you,"

"Like how you're totally into Caitlin Snow?" Kara retorted.

"Kara…" Barry sighed.

"I'm serious Barry. You totally like this girl. Why can't you just say that?" Kara asked.

"It's not that I don't like her. If she were open to have a relationship with me then…" Barry trailed off.

"Would you?" Kara asked.

"I don't know. Because it's never going to happen," Barry replied.

"Don't give up hope Barry. She likes you too," Kara told him.

"Sometimes it's hard to believe." Barry responded. He shook his head to rid himself of these thoughts. "Are we ready to do this?"

"Yeah, just before you go," Kara said, leaning up unexpectedly to place a fleeting kiss on his lips. Pulling back she stared into his eyes. "I think we're better off as friends."

"I think that's for the best," Barry agreed.

The two of them lined up and as they counted down to one, they both sped off, nothing but blurs to the rest of the world. At the moment where Kara had reached her maximum speed, she grabbed a hold of Barry and threw him forward with all her might. Barry sailed through the air at incredible speeds before disappearing into a rift that opened up, effectively sending him to another Earth. Kara could only hope it was his own.

"Goodbye Barry," Kara whispered to herself. And she kinda hoped that Barry could hear her too. Staying still, staring at the spot where Barry had disappeared, she launched herself into the air, back home.

Barry exited the breach back onto the street where he had left and hurried back to STAR Labs as quick as possible.

"I'm back. How long have I been gone?" Barry asked the rest of the gang.

"Let's just say you demolished your old record," Cisco reported.

"What?" Barry asked, confused. Did they not notice how he'd been gone for practically a whole day?

"Yeah, you've gone 4 times faster than you've ever gone before." Caitlin added. "That's as fast as Zoom,"

"But how long was I gone?" Barry asked again.

"A couple seconds. Why?" Cisco asked.

"I've been gone for a whole day," Barry revealed. "Did you not notice?"

"I mean, there was a time where you completely disappeared from our sensors, but I just assumed you were going too fast for them to pick up," Cisco remembered.

"No, I've been gone. A whole Earth where none of us exist," Barry said. "I mean, there were aliens as superheroes. I made friends with one of them. You didn't notice?"

"Freaky. But you're here now, so what does it matter?" Cisco asked.

"It means I'm able to travel between Earths by myself. And if I can do it, that means so can…"

"Zoom," Harry said, realizing what this new ability meant for them. Nothing but trouble.

"So why hasn't Zoom come for us yet?" Caitlin asked. She refused to call that monster by his name.

"Maybe he hasn't realized yet, but he will, unless we stop him in time. We can't rely on the V9 taking him out in time. We need to prepare in case he comes looking for us," Barry said. "By the way, could you make this a little smaller? It kinda sucks," Barry took off the tachyon enhancer, handing it to Harry to improve.

"If it sucks, then yeah," Harry took it off his hands and went to minimize the size without losing any of its power.

"Okay, now that we've agreed we cannot sit idly by and wait for Zoom to come for us, we need to plan to take the fight to him," Barry said. "What have we got?"

"All the breaches are closed, so the only way we're getting to Earth-2 is if you can carry us there. And we'd need to test that so it's safe for you to do," Caitlin said.

"No, we have Cisco. He can open a breach for us. His power is to tap into the multidimensional energy. He could manipulate it to create another breach," Barry pointed out.

"Problem though," Cisco interrupted. "I don't know how to do that. The most I can do is create a breach leading to somewhere else on our world,"

"Well then figure it out!" Barry demanded.

"Hey, don't yell at him. He doesn't need to do this," Caitlin argued.

"We need to get to Zoom, and Cisco may be the only way back," Barry said.

"But Cisco doesn't want to get back. If you're so desperate to fight Zoom, you can do it yourself. You've just travelled to another world by yourself. Do it again," Caitlin glared at him. "We are not going to be part of your revenge plan,"

"Actually, he's not particularly torn up about that. He's doing this so-" Cisco tried to say.

"So the people of Earth-2 no longer need to suffer. Zoom is a tyrant, and he's not going to stop and who knows how long before he finds another unlucky speedster so he can cure himself," Barry cut Cisco off before he could reveal too much.

"Why do I even bother?" Cisco mumbled to himself.

"I don't care what your reasons are Fleet Feet. Zoom is dying, and if he somehow makes his way to Earth-1, then we will deal with him then. We are not going to actively look for a fight with the guy who broke your back!" Caitlin crossed her arms, her glare remaining fixed on Barry.

"Well I say we need to strike against him before he gets the chance. Zoom will figure out how to jump Earths himself, and I'm not going to wait around for him to learn Ms. Frosty. People are dying and I'm not going to let them if I can help it," Barry glared at her in return.

"Those people don't exist. They live on another Earth. In another dimension. A different timeline. They don't matter to us!" Caitlin argued.

"But they're still real people, who don't deserve being ruled by a man like Zoom,"

"Well that's not our problem. We didn't know these people existed a year ago, and they've been doing fine until now. They don't need you," Caitlin countered.

"It doesn't matter that they never asked for my help. I'm a hero. I save people even if they don't ask for it," Barry stated. "Maybe you're not a hero after all,"

"Choose your battles Barry. You can't take on every villain and hope for the best," Caitlin said. "One day, you'll meet someone that's out of your depth, and I won't be there to fix you up,"

"I am going to face Zoom, with or without your help," Barry glared, his thoughts remaining unswayed. "I don't need you to get to him. I'll figure it out myself,"

Barry had somehow convinced Cisco to help with creating a new breach back to Earth-2. He'd led him to an abandoned hospital that once housed a breach. The area had the most unstable amount of multidimensional energy that should make it easier to reopen the pre-existing breach.

"I'm just not sure I can do this," Cisco voiced his concerns.

"I know you can do this. I've seen what you can do, and with a little more experience, you could open a breach to any Earth in the multiverse." Barry encouraged him. "What's really bothering you?"

"Before Wells, Eobard, disappeared, he found out about my powers, and he told me they were great things. Then I saw what happened to my doppelgänger on Earth-2, and that just got me thinking. Right now I feel like Anakin Skywalker. And if I keep using these powers, I'm gonna become Darth Vader." Cisco explained.

"Dude, you are not going to become Vader," Barry said. "I'll always be there for you to make sure nothing is going to happen to you. Look, if you don't want to do this, I promise, I will drop it. But I'm not going to stop looking for a way to get back there,"

Cisco remained silent, glancing at Barry to see that he meant that he would continue looking for a way back to Zoom until it was too late. "Alright, I'll do it," he agreed.

Cisco placed his goggles back on his face and raised his hand to the area where the breach once was. Contemplating for a second, he closed his fist to be able to focus his powers a little better.

Immediately his hand began to glow a light blue. Waves of energy were unleashed as they began to split open the fabric of the universe and create another breach to Earth-2.

Slowly, the breach was reformed and opened the gateway between the two Earths once again. Once the process was finished, Zoom jumped out as if he was waiting for them to bring him back.

"Reverb's doppelgänger has increased his powers. You were unwise to open the breach again." Zoom growled.

"I couldn't let you terrorize any more people. I needed to get to you before you found your way back yourself," Barry stated.

"You've found your speed allows you to travel between worlds. It was about time. Pity you couldn't find your way back to me yourself," Zoom taunted him.

Barry filed away the information that Zoom was already aware that he could have come to Barry at any time, but only chose to return once there was a path provided for him. Perhaps this ability wasn't as easily controlled, meaning there was no way to know which Earth you would travel to. It was something to experiment later.

"Well it seems you were unable to find your way to me as well," Barry smirked at him. "Why else would you wait until I gave you the way back?"

Zoom growled in anger. He wouldn't be made fun of, nor be compared to such an inexperienced speedster.

Barry stepped forward before halting, only letting his lightning show for a brief second. Zoom reacted accordingly, activating his speed before letting it go when he realized Barry hadn't actually done anything.

Barry smirked. That was a mistake. By reacting to him, Zoom was letting Barry dictate how the battle would go. Zoom was just as nervous about how to go about their rematch.

"Catch me if you can," Barry called out, before rushing out of the hospital with Zoom right on his tail.

"Harry, come in. Is the trap set?" He quietly muttered to his comms.

"Just lead him right into the trap."

Barry was running through the streets with the target being STAR Labs, but he couldn't make it obvious to Zoom. There the trap would be set in motion. After much research, they had found Jay's doppelgänger to be a man named Hunter Zolomon. The problem was Hunter Zolomon was a person on Earth-2 as well. A well known person seeing as he was a convicted serial killer. After pulling up an image, they could not deny Hunter Zolomon of Earth-2 was Jay Garrick. He was lying to them from the start.

With this new knowledge, a plan had formed. Zoom wanted to be seen as above his past, but if there's anything that Barry knows, it's that your past will always catch up to you.

With Barry's new speeds, the two were equal and they arrived at STAR Labs barely seconds after they first started. "You've gotten faster," Zoom commented. "Good, that means there will be more for me to take,"

"That's never going to happen," Barry replied as he disappeared into STAR Labs with Zoom following behind him.

Leading him into their training centre, their trap activated. As Barry passed by one wall, a cardboard cutout appeared of a blonde woman with a kind smile on her face. Zoom stopped to gaze at the picture, shock on his face. He was clearly remembering something.

Barry took advantage of the distraction and struck Zoom clear across the face. He backed away before Zoom came to his senses and tried to fight back.

Zoom took another step forward and another cutout appeared. A stern looking man was subtly glaring forward. Zoom fell to his knees at the look, cowed by an unseen force.

Barry took a chance and fired a Boot at Zoom's leg. It effectively neutralized his powers and delivered a debilitating shock through Zoom's system. Zoom yelled in pain, stuck where he was.

Barry laughed without a hint of emotion and pulled Zoom's cowl off his face to reveal the familiar face of Jay, or as he was now known, Hunter Zolomon. Barry just grinned at the sight. He knew there was something not right about him from the moment Barry saw him. He should have trusted his instincts.

"How did you know who I was?" Zolomon asked, genuinely curious. He had been so careful to avoid revealing his actual name to anybody.

"A speed drug. Turns a speedster's lightning blue. Tests on your blood when you first came revealed to us your disease, although we didn't connect the dots until after," Barry said.

"And my family?" Hunter gestured to the cutouts of his parents.

"Tried to find something about you and ended up with your doppelgänger. Hunter Zolomon. Harry filled us in on the rest," Barry revealed.

"If you know about the speed drug, then you know why I'm doing this," Hunter said.

"You need me to live. But I'm going to offer you this once. We can find you a cure. One that doesn't require all this death," Barry offered, trying to be the bigger person. Hunter may deserve to die, but that didn't mean he should. And Caitlin would have killed him if Barry didn't at least try to help him.

"I'm dying Barry! There's only one thing that can get me what I need," Hunter shouted in rage.

"And you just don't care how many lives you destroy to get it? The people you hurt?!" Barry retorted.

"No! I don't!" Hunter denied. "That feeling was taken from me a long time ago,"

Hunter slowly raised off the ground, grunting in pain, but managing. "You know that was smart. Using my parents against me. Ugh family. Such a weakness,"

"Not for all of us," Barry shook his head. "Sometimes they push us to be stronger,"

"Come on, don't deny it," Hunter said. "Feelings, emotions. They just get in the way. The only ones with those end up six feet under,"

"What are you talking about?" Barry asked.

"You," Hunter stated. "You think I don't notice? All the little looks you two share. The inside jokes. The way you can't stop talking about her even when she's left the room,"

Barry immediately knew who he was talking about. "You can't actually think I'm interested in her,"

Hunter smirked. It was just too cute how Barry thought that. "Either way, I think it's time I get what I came for,"

Barry laughed and shook his head. "You're not getting out of there," he gestured to the Boot still latched on his leg. "When I offered you freedom the first time, it came with a condition. Time to collect. I'm throwing you back in the Pipeline with the key thrown away,"

"You can't lock up the darkness," Hunter whispered to himself.

Barry gave a concerned look as he eyed Hunter, who didn't look all too worried. "What did you say?"

Hunter looked back up with his eyes pitch black. "You can't lock up the darkness!" he snarled at him and vibrated his arm to cut off the Boot off his leg and sprint out of there.

Barry was shocked and didn't move before reality caught up. Barry tried to follow. To find out where Hunter had run off to, but it was too late. Zoom had escaped.

The West family returned home after a long day. Everyone was feeling dejected for failing to capture Zoom and releasing him to their city.

When the lights were turned on, it was clear someone had been here. Everything was destroyed. Joe remembered that Wally was supposed to be in the house and rushed to his son's room.

A cry came and everyone rushed to see what was going on. Wally's room was empty, but Joe was staring at a wall. On it was 'Your speed and the boy lives'.

The rest of the team was called up and they all came rushing to the house, either to try to find clues about Zoom's whereabouts, but it was likely he'd returned to Earth-2 since the breach was reopened, or they'd come to comfort Joe and Iris.

Joe stayed in Wally's room and Barry remained to try to offer him comfort. But he knew what he had to do.

"I need to save my son Barry, but I know you can't give up your speed to this maniac," Joe cried, his tears falling from his face.

"That's not your decision. This is my choice and I want to save Wally as much as you do," Barry told him.

Joe shook his head. "Barry you can't,"

"It's what I have to do," Barry stated.

They'd arranged a meeting. Zoom would return to STAR Labs with Wally in tow and they wouldn't cause any harm. As long as Wally was safely returned, Barry would surrender his powers to Zoom.

Zoom had arrived with Wally in his arms. Joe gestured for him to get behind him and run back home, his gun trained on the demon speedster. Once Wally was gone, Zoom took off his mask to smirk at them. "Kept up my end of the deal. Time to hold up yours,"

"How do you know we won't shoot you right here?" Joe snarled at him.

"Because unlike me, you people are men of your word. You won't go back on this," Hunter said, fully confident that they would go through with this.

Barry raised his hand to lower the gun in Joe's hand and nodded with him. "Harry's just going to set up the machine."

Harry walked up to him and said softly, "One day, I'm gonna wipe that smirk right off your face,"

As Harry was setting up the device he used to steal Barry's speed the last time, everyone reconvened on the other side of the treadmill. "So how did you do it? Kill yourself? Speed mirage?" Cisco asked.

"Speed mirage? No," Hunter laughed at him. "I'm not that fast. No, I knew I couldn't be on two Earths at the same time, so I went back in time and met another version of myself,"

"A time remnant," Cisco realized. "You traveled back in time a few seconds to meet yourself,"

"Wasn't easy to convince him to kill him, let me tell you. But once he saw the genius of my plan, well he was all for it," Hunter said.

"It's ready," Harry came in. He handed Barry a piece of tech. "Place this on yourself and start running. It'll drain your speed and transfer it to the computer,"

Barry reluctantly clipped it behind his symbol and got onto the treadmill. Starting off slow, he gradually built up speed until streaks of lightning started flying off him.

The computers were showing the levels of Speed Force energy in Barry's system slowly being depleted. "His speed. It's leaving him," Caitlin commented.

Sure enough, Barry began slowing down to a crawl before he collapsed from the feeling of having his energy drained.

Harry took out a vial with lightning inside it, the Speed Force energy that was once residing within Barry. Harry placed the vial in a syringe. Hunter greedily snatched it from Harry and injected himself with the pure Speed Force energy.

It was like the pure energy now flooding in Zolomon was washing away the sickness, making him as good as new. With his powers rejuvenated, Hunter sprinted and held Barry against the wall by his neck. "Thank you, Flash," Hunter taunted him.

Barry couldn't say anything with Zoom cutting off his oxygen. His face going red as he struggled against the speedster.

"Stop!" Caitlin shouted.

Everybody turned to face her. Caitlin had tears streaming down her face as she watched Zoom choke the life out of Barry. "Hunter, please," she pleaded with him. "Don't do this. I know some little part of you did care for me, so if there is even a little bit of the person I loved in there, let him go,"

Hunter glared at her. His grip tightened for a moment. Barry let out a strangled gasp as he clawed at Hunter's hand to release him. Finally, Hunter let Barry drop to the ground gasping for breath. Everyone rushed to see if there was something they could do to help him. All of them letting out a simultaneous breath of relief. None more so than Caitlin.

Zoom stared at Caitlin with a glare in his eyes. "For his life, yours,"

Caitlin barely had time to react before a flash of blue lightning appeared and whisked her away.

"No!" Barry shouted when he saw Caitlin was gone, trying to stand up from his exhaustion and try to see where Zoom could have taken her.

"Barry stop." Iris supported him to bring him to a bed. "Caitlin's gone. I'm so sorry,"

Barry shook his head. "No. No, I can't stay here. I need to go, I need to go after him,"

"And how exactly are you going to do that? In case it's slipped your mind, your speed is gone. Snow is gone, and it's all your fault," Harry glared at him.

"Harry, stop," Cisco tried to call him off.

"No, he's right. I let Zoom back to Earth-1. I risked all of our lives for nothing and lost my speed in the process. Zoom's gone and he's going to destroy everything and there's nothing stopping him now," Barry said dejectedly.

"We'll stop him Barry," Joe tried to comfort him. "He's not going to get away with this,"

"Oh, isn't he?" Harry said. "Because it seems to me like Zoom has already gotten away with it. Allen is powerless. The breach is open. Snow has been kidnapped, and now he's cured from his disease and will be coming to this Earth to take it over,"

"Stop trying to defend me Joe. I screwed up. I should've just left well enough alone, but instead I made everything worse." Barry said. "Everything has gone to hell, and it's all my fault,"

Caitlin is gone. Barry's speed is gone. It seems like Barry is on a losing streak. So next chapter is going to be one that a lot of people have been waiting for since the beginning. One of the two is going to realize they love each other. What? Tell me who you think it is. The actual answer may surprise you.

So for a long time, I struggled with the decision on whether or not Caitlin should be kidnapped. For short term plans, no I didn't need her gone. But for long term plans, yes I did. As you can see, that's what I decided to go with. Do you guys think it was a good decision? How did I do?

We're winding down to the final chapters for the season. I estimate I still have maybe 3-4 chapters left to give before I go on a break before season 3. If there is anything last minute you want me to add for the season, now is the time to ask. Hope you all have enjoyed the journey so far. I'll see you all next week.