Disclaimer: WB/DC own these characters. I'm only borrowing them for a while. I own the original ideas found in this. Some dialogue and scenes are from or were inspired by the Crossover Event of 2017 Crisis on Earth-X. No copyright infringement intended.

AN: Yes, I'm beginning yet another story with others unfinished. This is a plot bunny which refused to wait, so here it is. I also want you to know, I'm borrowing some from the Earth-X crossover, but not exactly and not all of it. I do so love taking canon and mixing it up into something new! I hope you enjoy this slightly different spin of the Earth-X story.

All Barry and Iris wanted was simply to get married. Afterward, Barry thought they should've known better. Nothing, absolutely nothing, in their lives, vigilante-related or not, was simple. First there had been the argument between Felicity and Oliver at their rehearsal dinner, which resulted with them storming off in separate directions. Then there had been the small drama brought on by Kara's sister Alex and Sara trying to drink the other under the table at the bar, which resulted in Alex attempting to avoid Sara before the wedding. And now? Now? Now there were Nazis vaporizing their priest and shooting up their wedding.

Their wedding started so beautifully. Kara sang 'their' song so sweetly, Joe told him his parents would be so proud, and everyone marched down the aisle without mishap. Iris looked so very beautiful, and the minister even had some very nice things to say about him and Iris. And then, when he asked the infamous question about whether anyone objected, the minister was suddenly obliterated.

Barry was in shock at first, but he quickly realized everyone else looked to the back of the church. Where there stood thirty soldiers dressed in Nazi uniforms with rifles pointing at them. Without thought, Barry leaped into action, gathering all the bullets before they found any vulnerable targets. He then rushed to Iris, kissed her, told her he loved her, and begged her to get herself and her father to safety. She, being the trooper she was, proceeded to do so without any complaint about her wedding being interrupted. Of course Barry knew, if they survived all of this, there would certainly be some discussion and venting later about their ruined special day.

Barry joined in the fighting of the Nazi soldiers, until an unknown masked speedster got his attention. The speedster was wearing a suit similar to Thawne's, but how could it be Thawne? Barry had watched him die two years ago. In between exchanging punches with the mysterious man, he snuck glances as to what his teammates were up to. He was pleased to note Rory and Caitlin wielding their weapons, the heat gun and an icicle spear respectively, in one corner, Sara and Alex fighting together against more soldiers in another corner, and the rest of the combined team using their special skills as well to combat this newest, and strangest, threat.

Suddenly, the speedster in the bright yellow suit, took off outside the church. Barry decided it would be best if he followed, especially since it appeared his team had things under control. Because he wasn't sure what the other speedster was up to, Barry thought it wise to keep an eye on him. Speeding out of the church on the heels of the other speeder, he hoped he was right.

~~OQ~~KD~~OQ~~KD~~

Oliver simply couldn't believe his eyes as to what had caused the interruption of Barry and Iris' wedding. Nazis? Not just a few soldiers, not a rag-tag group of neo-terrorists, but troops of Nazi soldiers, apparently well-trained and deadly. Luckily, even miraculously, Captain Singh, Joe and others had gotten the non-vigilante guests out of the church without major injury. He could only spare a thought or two as to the origin of such a group, because he was preoccupied with fighting the soldiers. Until he saw an archer fighting Sara and Alex. His attention drawn to them, he watched as the archer suddenly leaped onto a pew, then onto the balcony. Oliver, catching Sara's eye, nodded at her to indicate he would follow him. Copying the archer's actions, Oliver also leaped up, catching the bottom railing of the balcony and pulled himself up onto the balcony itself.

It was hardly a secret attack, for the other archer had time to observe Oliver as he pulled himself up and was ready for him. Oliver was met with a bow aiming for his head. Oliver narrowly met this attack with a defensive move and managed several punches to the man's abdomen. As the other archer met him strike for strike, Oliver couldn't help but think of how evenly matched they seemed. Almost, as if, they were identical twins taught by the same fight master. The match, even though quite even, suddenly took a turn when Oliver was momentarily distracted by another soldier attacking him. After knocking the other fighter onto the floor with a roundhouse kick, Oliver returned his attention to the Dark Archer, but not before he felt a stinging on his neck. Immediately, he lost control of his limbs and found himself sinking towards the floor. Before he completely lost consciousness, Oliver faintly registered being picked up and thrown over someone's shoulder.

While Oliver was busy fighting the other archer, Supergirl stopped her battle against the soldiers when she heard above her, "Native of Krypton."

Stopping the fighting and looking above her, Kara observed a blonde woman flying above them next to the church balcony. She was dressed all in black, with a black cape floating behind her.

"Who are you?"

"Why don't you come up here and find out," the mysterious woman said before she crashed through the church roof and flew towards the sky.

Intrigued and worried, Kara followed the figure through the hole, catching up to her and began to throw punches, intent on knocking her out of the sky. However, the masked stranger met her punches, alternating with flying away, seemingly attempting to elude Kara.

As she traded blows with the stranger, Kara wondered who this stranger was, matching her in blow with blow, when a sudden blow to her head caught her by surprise. Her head spinning, Kara began to lose altitude as she fell to earth, landing on top of a car. Before she could rise, Kara felt something cold slip around her throat. As she lost consciousness, Kara barely registered being thrown over a masked man's shoulder as she felt the familiar weakness and nausea brought on only by kryptonite could bring.

Meanwhile, the other members of Team Flarrow fought off their combatants, dressed as Nazi soldiers, complete with a design on their uniforms resembling a swastika. Suddenly a loud noise was heard with a breach opening on the balcony. The Dark Archer, carrying someone, hurried through it out of sight. A second breach opened on the main floor, and before the Flarrow team could stop them, the majority of the remaining Nazi soldiers marched through it, some carrying the wounded while others fought off the Flarrow team as they entered the breach.

The team gathered to take stock of the injuries they had suffered as well as the damage done to the church. Several members gathered the remaining Nazi soldiers and restrained them. Barry, taking count of all present, noticed someone missing.

"Has anyone seen Kara?" he asked.

Several members looked around, while Nick said, "Yeah she flew through the ceiling following the other Skirt to the skies."

"Speaking of people missing, where's Oliver?" Sara asks.

~~OQ~~KD~~OQ~~KD~~

With his head thumping, and his stomach upset, Oliver slowly regained consciousness. Luckily, his self-preservation instinct kicked in and he listened for any identifying sounds around him before opening his eyes. All he could hear was someone's faint breathing not far away from him. He took a chance and opened his eyes slowly, with the light disturbing his eyes until they became accustomed to the darkened environment.

Oliver slowly sat up and forced his stomach to settle before he looked around his surroundings. Unsurprisingly, he was sitting on the cement floor of a prison cell, with iron bars on three sides of him. It resembled an old-fashioned jail seen in the old Westerns he used to watch with his father growing up, the cement walls looking old and weather-beaten, the walls without decoration. Oliver's eyes travelled the long chain from the manacles on his wrists leading to a hook on the floor by the back wall. Never one to leave anything unchecked, Oliver yanked on the chains, not surprised they remained securely fastened to the hook, despite his efforts.

Interrupting his thoughts, Oliver again heard someone's soft breathing. Looking into the cell next to him, his heart sank when he realized it was Kara, identically chained to the wall, but also with a strange glowing green collar around her neck. She was lying on the floor, perpendicular to him in the center of her cell.

Without thinking, Oliver got up and half-stumbled towards her, until he was yanked back due to the chains not being long enough for him to reach her through the bars. As he stood beside the bars, Oliver's anxious eyes scanned Kara's prone figure and was relieved to note there weren't any bruises or other injuries which he could see. Oliver chided himself for worrying, because who would've been strong enough to seriously harm the Girl of Steel? However, if that was indeed so, why was she unconscious? He called her name several times before she began to stir.

"Ol-ver, is that you?" Kara mumbled as she slowly rolled herself up into a somewhat sitting position, her hands to her head. She suddenly winced and raised her hand to her neck. "What—what's around my neck?"

"Looks like a kryptonite collar."

"I thought you said no one else had any kryptonite on this earth but the small bit I gave you for emergencies, Oliver." Kara looked around their environment, puzzlement clearly on her face. "What happened?" she asked, holding up her manacled hands looking at the chains. "Where are we?"

Oliver first addressed the most significant question first. "I also believed I was the only one who had any kryptonite on this Earth. I've no idea where we are. All I know is, I was fighting that other Archer when I was apparently hit by a tranquilizer dart."

"And that flying woman knocked me out of the sky," Kara's eyes lit up and she gingerly touched the kryptonite collar again, "and someone placed this around my neck as I lost consciousness after I fell on a car."

"All according to our plan," an unfamiliar voice interrupted their conversation.

Both superheroes looked up in the direction from which the voice came from and watched as a dark-haired man in a yellow suit with a lightning bolt similar to Barry's, slowly walked towards them. Oliver recognized him to be an enemy of Barry's whom he hadn't seen for over two years.

"Thawne," Oliver growled in his Arrow voice. "How are you alive?"

"You thought I was dead? It's called time travel, Queen." Thawne smiled an evil smile at Oliver. "All so I can continue my battle with Barry Allen. You may not be aware, Queen, but he and I battle throughout the ages, being life-long enemies. And he, foolish young man, believed he had gotten rid of me so easily?"

"Enemy? Of Barry's?" Kara asked Oliver while keeping her eyes on Thawne.

Oliver quickly said under his breath, "I'll catch you up later." Glaring at Thawne, he said, "We have more important things to discuss with this scum."

Suddenly, Oliver's eyes widened, and he swallowed reflexively as he found a vibrating hand in front of his nose, threatening to saw him in half. Barry had told him this was Thawne's favorite way of killing his enemies but had never experienced it himself. Until now.

"I'd be careful what you say to me, Queen." The vibrating stopped as Thawne lowered his hand. "We only need the hint of you being imprisoned over here to lure your friends into a trap so we can take over your Earth."

Kara and Oliver watched as Thawne vibrated back through the bars of Oliver's cell. Thawne stood in front of Oliver's cell smiling evilly.

"My Earth? When did it quit being your Earth, Thawne?" Oliver asked, not hiding his scorn.

"Since I found like-minded people willing to help me take it over. All for the opportunity to harvest a heart."

Oliver and Kara exchanged looks. "A heart?" Kara asked.

"Yes, specifically your heart, Ms. Danvers," a voice sounding strangely similar to Kara's was heard from down the hall.

Oliver and Kara watched as the Girl in Black walked towards them, her cape swinging behind her, followed by the Dark Archer. In shock, they observed the two strangers remove their masks, revealing their own faces.

"Surprised to see us? Of course, how could you imagine it was us behind the masks? We were surprised how comparable your powers were to ours, since you live in such a weak, cowardly society," Oliver's doppelganger said.

"Where are we?" Kara asked, looking at Oliver in disbelief.

"I suppose, to your tiny mind, Kara, it is unbelievable there are duplicates of you on other Earths. That there are even other Earths," Kara's doppelganger said to Kara, her voice dripping in scorn. "However, Thawne had told us this one," nodding at Oliver, "is very familiar with other Earths and its doppelgangers through his acquaintance with the Flash."

"You see, Ms. Danvers and Mr. Queen, on this earth, called Earth-X, Hitler was able to use the atomic bomb before the Allies, and won the World War," Thawne began the explanation.

"Hitler lived until a few years ago, leaving the position of Fuhrer to me through my father. I am the Great Fuhrer's grandson," Oliver-X said. At Oliver's gasp, Oliver-X said, "Yes, I'm related to the great Adolf Hitler through my mother's side, of course." Noticing Oliver shaking his head slowly, Oliver-X gave a rough laugh. "Yes, Eva Braun gave birth to several children, one of whom moved to America and married my mother."

Oliver hated to show any weakness, but the headache which was developing wouldn't be denied. As he thought about what was said, he pinched the bridge of his nose to clear the confusion, then he looked at his doppelganger.

"You mentioned you needed a heart? Kara's in particular. Why?"

Kara-X approached the bars of his cell. "You see, when I was young I too was foolish. Flew too close to the sun, absorbed too much radiation. I'm dying. Specifically, my heart is, from the damage caused by this Earth's radiation." Turning to look Kara in the eye, she said, "I need a new heart. So, whose better than a doppelganger's? We had met Thawne by then and decided he would be of some use to us in solving my problem. He informed us of you, Kara, after he heard of my predicament. He then went to your Earth," gesturing towards Oliver, "to gather intel. Much to his delight, he found out Barry Allen was getting married and that you, Kara, would be attending the ceremony."

"I couldn't resist, it seemed like the perfect opportunity. To annoy Allen and get the opportunity to grab you, Miss Danvers." Thawne rubbed his hands together, allowing glee to show on his face. "It went off perfectly, if I say so myself."

Oliver-X said in a tone similar to the Arrow growl, "I have warned you, Thawne, about that ego of yours."

"And I've reminded you that, despite your great power, you aren't my dictator."

Kara-X walked in between them and held up her hands in front of the men. "Boys, boys, don't fight. It only gives our prisoners false hope there is discord among us." Without warning, she stumbled and sank towards the ground. Oliver-X caught her in time, holding her close to him. "My dear, I knew you should've been resting," he said in a softer tone, demonstrating love and concern.

Oliver and Kara exchanged glances with the stated endearment and the sudden change in the Fuhrer's behavior. Oliver shrugged his shoulders slightly and they turned their attention back to their captors.

"You know how much I wanted to 'welcome' our guests." Looking at Thawne with barely contained distrust, Kara-X added, "I had to see for myself that our prisoners were properly restrained."

Thawne, having noticed the inquisitive looks of their prisoners, said, "Yes, on this earth, your doppelgangers are, shall we say, involved."

Kara-X cocked an eyebrow as she looked at Thawne. "Why not say it?" Catching Kara's glance once again, she said, "the Fuhrer and I are married."

"Ew, gross," escaped Kara's lips. She quickly covered her mouth and turned towards Oliver. "I didn't mean that."

"I think it is time we broke up this enchanting little interchange." Oliver-X looked at his wife. "You need rest, my dear Kara, and Thawne and I need to check how our plan is progressing. Ensure our little reception for Earth-1's so-called heroes is ready when they arrive."

Oliver and Kara watched in silence as their captors left. Oliver sank to the floor, pulled his knees up and rested his arms on them. He looked at Kara and said, "Well, that was interesting, to say the least."

In a softer voice, Kara asked, "Any idea yet on how we're going to get out of here? I would very much like to keep my heart. I'm quite fond of it."

Oliver left out a sigh. "No idea, yet." He combed both his hands through his hair. "We first need to figure out a way to find out the layout of this place, somehow."

"Do you think the others will be able to find us? I gather your Earth isn't any more familiar with Earth-X than mine is."

"Good point. I wonder how our captors are so confident they'll come rescue us, when they don't even know of this earth." After rubbing his chin in thought, he added, "Well, Thawne probably found out Earth-2's Harrison Wells' doppelganger is living on Earth-1, working with Barry and the gang at Star Labs. Like his Earth-1 doppelganger, Harrison is very knowledgeable. In many ways, their planet is much more advanced than ours. It's possible he knows about its existence."

They fell into silence, thinking things over. Oliver rose and began to pace in his cell as much as the chains would allow him. Suddenly he stopped. "I forgot to check!" As Kara watched inquisitively, Oliver patted his uniform frantically at his upper and lower arms, upper chest, and lower legs. He sighed as he stopped, looking up at Kara in disappointment. "I was hoping they'd overlooked at least one of my lockpicking tools I had hidden in my costume. No such luck." Cocking an eyebrow, he asked, "I suppose you don't have anything like that on you?"

Kara smirked at him, "Usually I've no need for things like that. I usually break the lock."

"No bobby-pins either, I suppose."

Kara pretended to glare at him and shook her head. "Any other ideas, Queen?"

Oliver cocked his head. "Not yet. But I will." Giving her a wink, Oliver said, "I never fail in thinking of some kind of plan. And between the two of us, we should come up with something in half the time."

"I certainly hope so."

AN: So, whatcha think? I hope you enjoyed it and let me know what you liked about it. Always appreciated. Hopefully I will get the next chapter up soon.