Barry Allen is in his lab, looking out the window he sees the Man in Yellow. He was standing on a rooftop, and looking straight at him.

In seconds Barry and the Man in Yellow are standing in front of each other. The Man in Yellow is vibrating his face so that Barry couldn't see who was under the mask. His voice caught as he tried to speak.

"It was you. You were the one in my house that night." His voice rose, shaking with anger. "You killed my mother. WHY?!"

"If you want to know that." The Man and Yellow said, his voice vibrating as much as the rest of him. "You're going to have to catch me."

They both raced off. But the Man in Yellow always stayed just one step ahead of him. Finally, he stopped in an abandoned football stadium.

The man in yellow stopped running too and faced him. Barry's mind was racing and his heart was pounding, but he waited a few tense seconds before attacking.

The two speedsters ran at each other, and Barry found himself thrown violently to the ground. "Not fast enough, Flash." The man in yellow mocked.

Barry was up again, and the two of them raced around the stands, throwing punches and trying to stop the other. Barry, once again, ended up on his back in the grass of the field. The evil speedster stopped in front of him, kicking him in the ribs.

"Who are you?!" Barry yelled.

"You know who I am, Barry." He growled. Barry flew at him again, but the man in yellow was faster, always a millisecond ahead, punching and kicking him. Finally, Barry fell to the ground again, angry and in pain.

"I don't know who you are."

"You do Barry. We've been at this a long time. But I'm always one step ahead."

Barry lunged, fist extended, only to get thrown to the ground for what seemed like the 100th time. Eobard grimaced internally. He needed to play the villain.

"It is your destiny to lose to me, Flash."
The Man in Yellow told him. "Just as it was your mother's destiny to die that night." Rage filled him, but his nemesis was gone before he could stand. Barry lay back on the grass, panting, and wiped some blood from his face.

Barry stumbled back into S.T.A.R. Labs. His eyes were bloodshot, and his face was pale and drawn. Caitlin ran up to hug him.

"Are you okay, Baby?"

He was so consumed by his misery that he didn't notice the haunted look in her own eyes. He just shook his head.

When the others had arrived, Barry filled them in on what had happened. Caitlin looked horrified, but there was nothing she could do while the others were in the room. Dr. Wells was insistent that they had to stick to their plan of luring the Reverse Flash in using the tachyon prototype.

When the others had left, Caitlin gave Sophia a nod to talk to him so she lingered casually by her computer, trying to get Barry alone. When they finally are she approached him with a hug.

"Are you really okay?" Sophia asks him.

"I finally get a chance to fight our Mother's killer and he wins! He always wins, Sophia!" Barry took a shuddering breath, trying not to cry.

Sophia rubbed his back, gently walking him over to the edge of the bed. Barry got a good look at her face.

"What about you. Are you okay?" he asks.

Knowing that she probably wouldn't be able to keep anything from him, she sighed. "I've just been.. missing Ronnie more than usual lately and with the Man in Yellow back in my life... It's just hard to believe that he's back you know." She felt bad not telling him about Ronnie, but she wasn't ready to tell him. Barry already had enough on his plate with the Man in Yellow.

Barry rubbed her back and she leaned against his shoulder. "I know what you mean. I miss him too." Barry murmured

They stayed like that for a few minutes. Then a memory rushed into his mind.

"Do you remember when you and Ronnie went on a double date with me and Caitlin?" Barry said.

"Yeah, I do. I was so nervous. It was my first date with Ronnie and I made a fool of myself when I spilled my milkshake on him." Sophia chuckled as she reminisced.

"You did but afterward he gave you his number and you two kissed afterward. So, it wasn't all that bad." Barry smirked.

"Wait. How did you? Did Cait tell you?"

Barry nods. "You did better than me. I didn't kiss Caitlin till the 3rd date."  they laughed.

"Thank you, Barry. You cheered me up." she smiled.

"No problem. I'll always be here for you no matter what." he smiled.

"So, are you gonna propose to Caitlin soon?"

"Actually, I was going to propose at the party tonight but I don't know... The Man in Yellow is back and I'm just afraid. I don't want her to get hurt or worse." Barry said worriedly.

"She knows the risks, Barry. We all do. We will stick by your side no matter what because we're more than a team. We're a family. And family sticks together." Sophia reassured him.

"Yeah, your right. It's just my mind is running a million miles a minute."

"Would it help if I help you with the proposal?"

"Thank you. But I think I got it."

"Can I see the ring?" Sophia asked.

"Sure." He then pulls a small blue box out of his pocket and opens it.

"It's beautiful, Barry. She'll love it." Sophia said and hugs him.

"It cost an arm and a leg. But it was all worth it. She's worth it."

~ Later ~

Their plan had worked. The Man in Yellow was trapped in Cisco's force field. Joe, Dr. Wells, Eddie, and a few members of the CCPD's swat team were all standing around him, and Cisco, Sophia, and Caitlin were in the Cortex. And Barry had been told to stay home and keep Iris out of the way.

Caitlin's spine kept prickling though. Something was wrong with this. The Reverse-Flash was barely even attempting to get out of his force-field cage, which in itself was unusual. Not quite able to figure it out, Caitlin kept her phone in her hand, ready to text Barry at the first sign of trouble.

"Cisco!" Wells yelled. "Lights!"

"Sure thing Dr. Wells." Cisco agreed. Caitlin saw lights powering on in the trap through her computer feed.

"Detective Thawne?" Wells asked Eddie, "Would you like to read him his rights?"

Joe stepped forward, though. "Joe, what're you doing?" cried Eddie, and Caitlin could see his hands shaking as he held up his gun.

"Getting some answers," Joe murmured.

"15 years ago, you murdered Nora Allen. I wanna know why."

Nora's killer stared back at Joe out of his vibrating face. When he spoke, his voice was low and untraceable. "Dr. Wells." He growled. "We meet at last."

Wells wheelchair rolled closer to the force field, and Caitlin's heart rate speed up. When he spoke his voice was calm.

"What do you want with the Tachyon particles?"

"My goals are beyond your understanding."

"Oh, I don't know." Dr. Wells murmured.

"I'm a pretty smart guy. I know you are exceptionally fast, so any trap we manufactured had to be invisible. I knew your cells could repair themselves, at extraordinary speeds, so you could withstand the damage this is doing to your body right now."

Cisco suddenly tensed beside her. "The super-compositors. The field is fluctuating. They need to get out of there, now."

Wells ignored the warning. "And the reason I know all this is because your powers are almost exactly like those of the Flash."

"Oh, I'm not like the Flash at all," he murmured. "Some would say I'm the reverse."

Up in the Cortex, all the screens burst into static. Caitlin yelled into the com with barely controlled panic. "Dr. Wells, evacuate. Get out of there now. Dr. Wells!"

They couldn't see anything. Then Joe's voice yelled, "Cisco! Turn off the barrier!"

"If I turn it off that thing's gonna get out," Cisco exclaimed.

"Cisco, he's going to kill Wells!" Joe bellowed.

Caitlin grabbed her phone from the table and typed a quick message to Barry.

"S.O.S."

Back at his lab, Barry's phone buzzed. His heart dropped into his stomach when he saw it was an S.O.S. from. "Snowflake." In seconds he was out of his lab and at S.T.A.R. Labs.

Team Flash runs outside just in time to see Barry attack the Man in Yellow. They spiraled up into the sky, before landing with a crash on the windshield of a car. Barry moaned, trying to get up.

The Man in Yellow turned his back on The Flash. He instead faced Team Flash as they are hiding behind a pillar scared. Barry runs towards him with a yell but was once again thrown to the ground.

Nora's killer punches Barry in the face again and again until he finally grasped Barry's head in his hands. Caitlin could contain herself, "Barry—" She croaked.

The man in yellow ripped Barry's mask off, before punching him one more time in the face. Barry collapsed on the ground.

Out of nowhere, a burst of flame slammed into the man in yellow. Sophia's heart leaped as she saw her Ronnie.

The man in yellow stands. "Our race is not yet over. See you soon, Flash." he then speeds off into the night.

Caitlin and Cisco helped Barry up as Sophia ran towards Ronnie. He looked at her sadly. "Don't look for me again." He said. Then his hands ignited, and he flew off into the air.

She watched him go for a moment, and then she remembered Barry. "Oh my gosh, are you alright?" She ran over to him, but he nodded.

Sophia relaxed, and the four of them stumbled back into S.T.A.R. Labs.

~ Much Later ~

"Come on, Cait! We are gonna be late to the party if you don't hurry up!" Barry called out. He is sitting on the couch watching TV and is waiting on her.

"Just give me a minute!" she yelled back annoyed.

"You said that like five minutes ago," Barry said rolling his eyes.

"Well, excuse me if I wanna look my absolute best," Caitlin said and exits their bedroom. She then stands in front of him.

"So, how do I look?" Caitlin said smiling and did a sexy pose for him. She is wearing a blue cocktail dress.

He stands up and his eyes widen. "Wow, you look so beautiful," Barry said amazed and looks at her sexy body drooling.

"Aw, thank you. I'm glad you like it." Caitlin said and they kissed.

Barry got a little frisky on their way over to Joe's. She loves it when he can't keep his hands off her body because sometimes she didn't feel that sexy in her body. It also makes her feel special and loved. They then arrived at Joe's house and hold hands. She raised her fist and knocks on the front door.

Iris walks to the door and opens it. "Hey, guys! My Dad and Sophia are gonna be a little late but come on in. Eddie and Cisco are already here." she said.

Caitlin snuggled next to Barry while Iris settled back on Eddie's lap and Cisco sat next to them. They sat in comfortable silence for a few minutes and then they talked about their work and their social lives. Joe and Sophia then arrived.

"Where's Dr. Wells?" Joe asked.

"He, uh, wasn't feeling up to a social gathering, but he appreciated the invitation. Eggnog?"

"Yes," Joe responded vehemently, and Caitlin poured him a glass.

Joe bounded to his feet, wiping away an eggnog mustache. "Time to light up the tree!" He rummaged through a box and pulled out the angles, stretching to place it on top of their pine.

"Iris, would you do the honors?" Joe said. She leaped up from Eddie's lap and ran over to the plug. The tree lit up like an ember touching dry tinder. Caitlin clapped with the rest of them and rested her head on Barry's shoulder. Then Joe turned around, and everything turned into a haze of Christmas music and alcoholic eggnog.

~ Much Later ~

"Can I have everyone's attention," Joe said tapping on his wine glass with a fork.

"It's tradition for everyone to at least open one present. So, who's gonna go first?" Joe said.

Cisco, overexcited as a child, wanted to go first but Barry stopped him. "I want Caitlin to open her present first." He exchanged a brief look with Sophia, who gave him an encouraging nod.

He handed her a small box wrapped in blue and gold.

She examined it, before carefully getting rid of the paper. Inside she found a small, blue ring box. She gasped before opening it as well, revealing a beautiful silver ring, with a snowflake-shaped diamond.

"Barry..." she whispered, her lips trembling.

Barry gets out his phone and taps the play button. He sets the phone aside and a slow beat started playing and before anyone knew what was going on Barry started singing softly to Caitlin.

[•]Can't say how the days will unfold,
Can't change what the future may hold
But, I want you in it
Every hour, every minute

This world can race by far too fast
Hard to see while it's all flying past
But, it's clear now,
When you're standing here now
I am meant to be wherever you are next to me

All I want to do
Is come running home to you
Come running home to you
And all my life I promise to
Keep running home to you
Keep running home
To you

And I could see it
Right from the start
Right from the start
That you would be
Be my light in the dark
Light in the dark
Oh, you gave me no other choice
But to love you

All I want to do
Is come running home to you
Come running home to you
And all my life I promise to
Keep running home to you
Keep running home
Home to you[•]

By the time Barry was done Caitlin was in tears, she stood up and placed a very romantic kiss on his lips.

"Caitlin..." He gently takes the ring from her hand and goes down on one knee.

"I was trying very hard to find the perfect way to ask you this question."

Joe put his arm around Sophia and Eddie did the same with Iris while they watch the scene unfold in front of them.

Cisco carefully raised his phone. He needed to capture this moment.

"I love you." Barry continued. "I love you more than I ever imagined to be possible."

"I love you too." She said and smiled adorably.

"Being struck by lightning, becoming the Flash. We've been through hell and back together. You patch me up, encourage me, and yell at me when I'm being reckless—"

Caitlin laughs softly.

"I think I babbled enough and waited long enough." He looked into her eyes, she was even more beautiful in the soft light of the Christmas tree. "So, what do you say, Snowflake. Will you marry me?"

She nodded, her eyes still wet. "Yes! Yes! Of course, I'll marry you, Barry Allen."

His hand started to shake when he slid the ring in her finger. He then quickly got up, wrapped his arms around her waist, and pulled her into a deep romantic kiss.

"Finally!" Cisco screamed.

Iris, Joe, Sophia, and Eddie all clapped and cheered.

"It's beautiful," Caitlin said looking at her ring.

"Not as beautiful as you," Barry said

"Oh, jeez. That was cheesy." Caitlin giggles.

"Oh, I know and I mean every word. Merry Christmas, Snowflake."

"Merry Christmas, Teddy Bear."

~ Time Vault ~

Dr. Wells wheels in while drinking the eggnog that Barry and Sophia Allen had offered to them earlier. He added a few shots of liquor to his eggnog.

"Merry Christmas. Professor Thawne." Carol the A.I. greets.

"Merry Christmas to you too, Carol," Eobard greets back.

"What can I do for you today?"

"Access the file named under Thawne Family and play video."

"Any preference?"

"Christmas Morning. The year of 2484." Eobard said with a sad smile.

"Accessing... File found," Carol said.

The holographic 3D image of Carol's body disappeared and then the video played. Eobard watches the family video with sadness.

THAWNE FAMILY

(Eleanor Winters-Thawne
Dianna Agron.
Caroline Winters-Thawne
Jennifer Aniston. Eobard Thawne Aaron Eckhart.)

Eobard takes off his glasses and rubs his eyes as he was tearing up. The three futuristic cameras fill the family living room and film them. Eobard and his wife Caroline are wearing Santa hats and smiled at their little girl in her pajamas.

"Come on, Ellie. Open up your present." Caroline said. Eleanor unwraps the large gift and smiles.

"Oh my God! It's what I always wanted." the 8-year-old little girl said squealing excitedly. She holds her gift and hugs it tightly. It is a pink hoverboard. (They actually float like they are supposed to.) She hugs her parents tightly.

"I love it. Thank you, Mommy and Daddy."

"You're welcome, Sweetheart. Now those kids won't bully you at school anymore. You'll be the popular one now." Eobard said smiling.

She nods smiling. "I can ride it to school?"

"Well of course," Caroline said.

"Yay!" Eleanor said. 

The parents laugh softly.

"You still have one more gift left to open, Sweetie," Caroline said.

"What is it?" She questions. Her mother hands her a little black box. Eleanor opens her gift and sees a red smartwatch.

"Put it on." Eobard encourages.

Eleanor puts on the smartwatch and then it turns on. A picture of a 3D holographic woman is displayed.

"Hello, my name is Rosie. What's your name?" the female A.I. asks.

She waves shyly. "Hi, Rosie. I'm Eleanor. But you can call me Ellie."

The Female A.I. smiles. "It's a pleasure to meet you, Ellie. I will be your personal assistant."

"Can you be my friend instead?" she asks.

"Yes. If that is what you want me to be. I will be your friend." Rosie said and Ellie smiles happily.

"So, do you like your gift?" Eobard asks.

Ellie nods and hugs her parents tightly.

"I love you, Mommy. I love you, Daddy," she said smiling happily.

"We love you too, Sweetheart," Eobard and Caroline said.

"Now let's go eat. Mommy cooked your favorite foods," he said and then lifts up his daughter. She giggles at her father as he kisses her cheek. Caroline and Eobard then share a passionate kiss.

"Merry Christmas, Hubby."

"Merry Christmas, Wifey."

The video fades ending and Eobard is crying silently.

"Are you okay, Professor Thawne?" Carol asks in a worried tone.

"I-I'm alright. Thank you for asking."

He created the Female A.I. along with the help of his wife Caroline and modeled his wife after it. The pain, loss, and anger of losing his family are feeding the negative speed force that is currently running through his veins. Eobard then gets up out of the wheelchair and his entire body starts to vibrate violently dropping his glass of eggnog on the floor.

"No, don't give in," He said to himself and clutches his head. He wanted to kill Barry Allen badly but he needs him to go back home. His body then stops shaking and his eyes stop glowing red. He sits back down in his wheelchair and calms himself down. 

"I broke your promise, Ellie. But I promise you that I'll make it right." Eobard said and then takes one last look at the Thawne family pictures before wheeling out.