Once Caitlin's – or maybe rather Killer Frost's – cold signature was picked up by the satellite, they didn't really want to sit around and wait till Carla Tannhauser handed them the cure ready. They decided to act, taking the device the boys had come up with for a spin, figuring that even if they couldn't get rid of Cait's powers just yet, it didn't mean that they couldn't try and restore her back to her old self.

Once Barry, Cisco and Ray showed up on the scene, it turned out it wouldn't be as easy as it seemed even with the odds in their favor. The Reverse Flash was there, obviously, and he was a fierce opponent with years of experience on him. He wouldn't let them get to Caitlin, immediately attacking whereas Killer Frost didn't just stand there. She used her powers as well until she finally hit Ray, successfully managing to freeze his suit so he remained incapacitated. While Barry looked away from Thawne for a moment to make sure his new friend was all right, the Reverse Flash used that opportunity to strike him with a lightning bolt and before they knew it, Cisco was the only one remaining uninjured and making the choice to take his friends back to the Labs rather than try and fight. They stood no chance like this anyway and were definitely in need of a much better strategy.

The absence of Caitlin, who was usually the one taking care of the injured, made itself painfully known and they actually considered asking Carla for help when Jesse showed up, having already dealt with the meta on her earth and started checking the boys up. In the end, there was no actual danger. Ray would be fine, but he needed to keep warm as he suffered from slight hypothermia, his suit thawing in the lab. Barry was in much better condition, but felt defeated.

"We need a better plan!" he raised his voice when hitting the table with his fist, being so close to actually losing it. The truth was that he hated the fact that Caitlin had once again found herself in the crossfire on this earth. Right now it seemed safer for her to stay away from the team, to just come back to Earth Two. Barry missed her as she was his friend, but he saw now the reason behind her leaving. Who was he to deny her that anyways? If she wanted to look for her own happy ending, she should just do it and she did find it. Only now everything was once again shaken in its core and he truly didn't know how to help anymore, how to get her back. He risked a glance at Wells, but he was just sitting by Caitlin's old desk, his head in his hands, the counter supporting his elbows. He looked defeated as well and worse even, he reminded Barry of a man completely broken down, teased and let down by life over and over again.

In that moment, Carla showed up in the entrance to the cortex, looking around and registering the morose mood. She guessed she came just in time.

"It's ready," was enough for her to say for Harry to get up from his seat and made his way to her, taking the small vial from her hands without a word and just staring at the cure in there.

"Will it work?" he asked and she tried not to frown at his brusqueness, by now a little used to it. The fact that this man seemed to love her daughter with all of his heart and be there for Caitlin for better and worse – something that her own mother couldn't do – made it all better in the end, though.

"I'm positive," she answered him. "Also, I think you should be the one to admit it to Caitlin," she then said and Harry looked at her in surprise. "I think that if anyone can get close enough to her, it's you," she then added in explanation. "I…" she started again while he was just standing there, staring, "I don't really know what to think of you as a person," she was determined to just let it out, "but then I realize that I don't have to. My daughter has chosen you for a reason and when I see the two of you together I actually see how much you love each other. I used to have that, too, you know. And I lost it. So I know how devastating that feeling can be. It…" she sighed before saying, "it simply sucks all the life out of you and leaves you this empty shell that doesn't even know how to go on living anymore without the other person there. I might not entirely like you, dr. Wells, but I do respect you, because you already lost your first wife and still did a wonderful job taking care of your daughter, so… you're already stronger than I've ever been. You've been there for Caitlin and I am grateful for that. You… somehow you saved her."

When the woman finished, there was awkward silence in the room and eventually Harrison cleared his throat before speaking roughly, "Well, thank you, dr. Tannhauser. It really means a lot to hear that and… yeah, I should probably apologize for…"

"Don't mention it." Carla actually smiled to him when waving her hand. "I deserved that."

"Well, that you did. I couldn't agree more," he admitted, remembering how he screamed at her and he knew he made a terrible mistake just then. "I mean…"

"Yeah… Harry… we really need to brush you up on some social skills once all of this is over," Cisco came to his rescue when getting to the man and patting his shoulder. "Now, I don't think we'll get a third chance at this, so we must come up with the perfect plan. I get you, dr. Tannhauser, when it comes to Harry being the only one that can get close enough to Cait, but the thing is that it's not Caitlin anymore…"

"Actually," Harry broke in, a strange glint appearing in his eyes, "I might just have the perfect idea."

They had only one shot, but they truly believed that this time they would manage.

As soon as Cisco opened a breach again, having located the Reverse Flash who was apparently out, training Killer Frost how to use and control her powers; Barry got through, keeping his arch nemesis occupied and doing his best to pull him away from Frost.

Just then, Jesse came into action, attacking the evil version of her step mom, making sure the woman's vision of her equally evil partner was obscured.

Finally, Cisco opened another breach so Barry and the Reverse Flash would run straight into it, giving Harry the opportunity to show up.

Jesse, seeing that, deliberately ran into Killer Frost's line of fire, pretending to be horribly injured and falling down to the ground.

"Caitlin!" Frost then heard Eobard calling her and she whirled around with relief obvious on her face as she spotted him making his way to her. He had his suit and the mask on.

"I was worried there for a moment," she admitted when closing the remaining distance between them herself. "Are you all right?"

"Oh, please. You should know better than to think that Flash is actually a match for me," he answered her. Then he made a sudden movement and she was rendered shocked when she felt the stab of a needle in her arm.

The look she gave him as she made a step backwards, holding on to the place where he injected her with something, was full of betrayal and disbelief. And then he pulled the mask back and she saw the difference clearly. He was Harrison Wells all right, but it wasn't her Wells.

"You may get rid of my powers," she then said in a voice full of venom, already feeling the ice receding, already feeling herself turning back to human, "but you will never get her back!" she threatened.

"I beg to differ," he just said and before she could react, now actually having no powers to defend herself, he stuck something to her forehead. "I'm sorry, but you were the one who started this," he added when she placed her hands to her head, screaming because it hurt so much. "You decided to leave your own body behind and take someone else's and I cannot let you get away with it."

He was watching her intently, looking for any sigh of his Caitlin coming back in those blank eyes of hers when… her whole body went inert and she simply collapsed to the ground.

"Snow!" Harry screamed, getting to her and holding her up just in time so she would have a soft landing as he got down to the ground with her. "Caitlin! Wake up!"

Only she didn't.

There was a whoosh of air and Harrison could tell that the Reverse Flash was back with Barry, Jesse and Cisco in toe, but he couldn't care less at the moment. He left that problem to the speedsters and Vibe, not tearing his eyes away from Caitlin.

"You cannot win," he heard Barry telling Thawne just then. "Your Caitlin is gone and you're just one person against all of us."

Harry didn't know if Thawne escaped or not, but he was still on the ground, holding Caitlin without being attacked, so that was a plus.

"Snow, please, wake up," he said it one more time and then checked her pulse. It was faint, but it was there. "Snow, please. I love you and I cannot lose you, ok? You are the love of my life, so please, just come back to me, ok?" He hated that his voice was coming out all broken, that he himself seemed to be on the verge of crying, panicking more than ever before because he'd never actually come so close to losing her. He couldn't even bear the thought of it. "You know, your mother told me today that I was strong because I could handle a loss, but the truth is that I cannot. I simply can't lose you, Snow! In fact, you and Jesse mean so much to me that I would leave everything else behind without any regrets just for you," he kept on telling her, feeling her breathe, but still not able to explain why she wasn't waking up. He wasn't even sure there was a person left in this body. He couldn't tell whether Killer Frost got rid of her counterpart forever or not… He reached his hand to her cheek and stroked it gently. "Snow? Caitlin," he tried one more time, now actually feeling his tears escaping his eyes, but he didn't even care anymore. Because without her nothing mattered. "Snow, I love you so much that I'd even move to this earth just to be with you if you wanted to stay here. Just don't you dare leave me!"

He came to a sudden stop, not able to say another word as he buried his face in her hair, sobbing, knowing he was making quite a scene for the rest of the people who were gathered up around him, waiting with bated breaths, praying so that Caitlin would just open her eyes already.

And then a miracle happened. He heard her say, "That was just about the sweetest thing I have ever heard."

He stilled and then slowly, as though still not able to believe it, prolonging the moment he would have to check whether that really came from her and whether she was awake; he pulled away and looked at her. Her eyes were opened and there was a bright smile on her face and fresh tears in her eyes. "And just so you know, even in this ridiculous suit I can still tell it's you. I can always tell."

He ignored that remark, just gasping, "Oh, thank God!" And pulling her in, crashing his lips against hers, kissing her with all his might, pouring all the love and life he had into her.

They ended up hugging on the ground and then Jesse joined them, happily putting her arms around her father and Cait.

"Damn, we did good," Cisco commented when patting Barry's back.

"It was a damn good plan," his friend admitted with a smile. "Only it's too bad this team will be down three people soon."

"Four. You're forgetting Ray."

"Oh, right. Four."

"Then again, it's not really our team. It's theirs," Barry pointed Harrison and Caitlin.

When they all got up from the floor, Harry reaching his hand to Caitlin to help her out and steadying her, they heard him asking, "Will you marry me?"

They watched the couple in stunned silence. There was surprise on Caitlin's face at first but then she just smiled brightly at her partner and answered the only way she ever could with fresh tears glistening in her eyes, "Of course!"

"Now, who would think we'd actually be having an engagement party tonight?" Cisco asked Barry and they both smiled, watching the happy couple embracing on the street. "Though never ever in my wildest dreams had I thought I'd be watching Cait kissing the Reverse Flash after he actually proposed."

"He's not the Reverse Flash!" the woman in question heard that and immediately felt appalled by the insinuation.

"Yeah, we all know that, Cait!" Cisco argued. "But just… just look at him! He can totally pull it off!"

"How about you just breach us back to the Labs, Crisco?" Wells just asked.

"Or not."

They were all back in the Labs, celebrating with some music playing from the speakers in the cortex and some Big Belly Burger takeout with a dessert that Barry ran to get. It was the perfect party as Cisco even breached Felicity from Earth Two there. She was a little apprehensive around all the new faces at first, but she quickly relaxed, now sitting in Ray's laps, his arms around her.

Caitlin was just slowly kissing Harry, something that she felt the need to do again and didn't care about the crowd surrounding them at all. When they tore apart from each other, not wanting things to get too heated up, she settled comfortably in his arms, watching all the people celebrating there with her and feeling so grateful that they were all in her life, that they'd all come to an understanding after all the trouble they'd had. She was happy to be able to call all of them her friends, happy about the team she and Harry had completed on his earth and most importantly, she was looking forward to the future as she was now engaged, Harry promising to buy her a ring once they were back on Earth Two when actually enlisting the superiority of that jewelry over the one available here. She did point out to him that he was probably just saying that because he was quite literally penniless on this earth, in answer only receiving that once she'd see the rings in his world, she'd change her mind. She did state then that she didn't really need one, just him by her side.

They wanted to come back to Earth Two because no matter what he'd said to her that time when she'd struggled so hard to just wake up and come back to him, able to hear him but somehow not able to move her body just yet; she would never ask him to move. Her home was in his world now and she couldn't wait to make her way back there. Although, she thought when watching Wally and Jesse talking in the far corner of the cortex, they might actually travel back and forth quite often, seeing how well those two were getting along.

In that moment, Caitlin's mother stood awkwardly in the entrance, taking into the scene in front of her eyes and finally locating her daughter. When she saw how happy and relaxed Caitlin seemed to be in the arms of the man she loved, she decided to leave, but her daughter spotted her just then and got up, walking over to her.

"Mom, I… I can't even begin to thank you for all your help. You're the reason why I'm here today and to why I'm finally so free and so happy," she said through constricted throat because what her mother had done really saved Cait's life and her future with Harrison.

"I just did what a mother should," Carla dismissed that, clearly feeling awkward when met with so many emotions and actual affection from her daughter. "Besides, the real credit goes to your friends. They're the ones who brought you back."

"But you got rid of the powers I never wanted and made the future I truly want possible, so don't try to diminish all your credit, ok?" Caitlin asked and then she actually put her arms around Carla. She truly couldn't remember the last time they'd hugged, the gesture feeling so strange now, but she knew they had to start somewhere. Once her mother was back in her life, she didn't want to let her go again because she knew now that time and people around her, her family, it was all too precious to just let go.

To her surprise, her mother did eventually hug her back before pulling away hastily, feeling all awkward.

"Why don't you join us?" Caitlin suggested then, but Carla said she really needed to return to her work. "Just… please, drop by every time I pay this earth a visit, will you? I'd hate for us to become strangers again."

"I will," Carla promised with a nod and her daughter could swear a stray tear appeared in the older woman's eyes before she wiped at it stealthily. "Caity, your father would be very happy for you and so very proud of the woman you've become."

Caitlin smiled brightly. "Thanks, mom."

"And just so you know… I admit it was hard for me to get used to the man you've chosen, but Cisco was right when he said Harrison will grow on me," she then added. "Because in the end, the only thing that truly matters to me is that he makes you happy and that he loves you more than any other man could."

"Your acceptance really means the world to me," Caitlin smiled again through her tears. "I love you, mom."

"Bye… and… yes, I… I love you, too," Carla added but she did avoid her daughter's eyes when saying that. Finally, she left and Snow just came back to the man she loved.

"Ready to go home?" he asked when standing up and reaching for her hand.

"Oh, hell yes!"

"So soon?" Cisco seemed disappointed. "Well, all right! I will breach you all there, but remember to drop by from time to time, ok?"

"You got it," Harry assured him with a smile and then he surprised everyone present when putting his arms around the man.

Only once Cisco hugged him back, Caitlin immediately noticed the change in her younger friend's expression. It actually turned terrified.

There was something dark seeping into their world from a small rift… It was coming from a place where nothing resided but darkness and emptiness. It was incomparable to anything on any of the earths and dangerous as nothing they'd faced so far. In fact, Cisco's brain couldn't just grasp what it was before he was pulled into another vision.

Harry was running down the hallway, leading a small group of terrified people, urging them on as he stayed behind to make sure they all got in all right… then next thing Cisco saw was Harry disappearing around a corner briefly before he heard a small pop, like an explosion and all that he registered was the shower of blood in its wake that stained the floor, leaving nothing behind.

Cisco pulled away from Harrison, horrified and it was just then that the older man registered something happening.

"Cisco…" he heard his fiancée ask in fear, "what did you just vibe?"

"Oh, holy mother of…" Cisco gasped, closing his eyes and placing his hands on his head.

"Ramon?" Harry asked when his younger friend finally opened his eyes and looked in his direction, horrified.

AN: Um… what did I just do? Well, this is the direct outcome of the thingy that came through when they'd gotten rid of Zoom. But don't ya worry! It's gonna be fine! Just hang on there through one more crisis!