Chapter 4

Earth-1

The 'Welcome back to life' party for Courtney Whitmore and Laurel Lance of Earth-1 was well underway in the S.T.A.R. Labs hall hangar, the building which the heroes had used as their base of operations during the Dominator Invasion. All the attendees consisted of – Barry, Conner, Cisco, Caitlin, Harry, and Wally from Team Flash. Oliver, Laurel-One, Laurel-Two, Sara, Roy, Thea, Diggle, and Quentin from Star City. Clark, Lois, Chloe, Ollie, Bart, Courtney, Tess, Kara K, and Dinah from Earth-21. Kara D, Alex, Lena, and Winn from Earth-38. Everyone was dressed in their regular clothes.

Clark, Lois, and Kara K were standing with Barry, Kara D, and Alex as the six of them were conversing.

"You guys look a lot different from the Clark and Lois from our Earth," Alex said, as she regarded the Earth-21 version of the couple.

"It's one of those unexplained mysteries of the Multiverse," Clark said.

"You're right about that," Kara D nodded in agreement. "Speaking of which, Barry's officially moving to our Earth tomorrow. That way, the fact that we live in two separate universes will no longer be a roadblock in our relationship."

Clark raised an eyebrow in surprise. "Really? I didn't know you two were a couple."

"It just sort of happened on its own," Kara D said.

"Kara and I spent quite a bit of time together when I was on her Earth and we ended up becoming more than just super-friends," Barry said.

"You two really love each other?" Clark asked.

"Yeah, of course we do," Barry nodded with a smile. "I love Kara so much, even more than I ever loved Iris." He threw a glance at his girlfriend. "She's my Kryptonian lightning rod."

"Aww, that's so sweet of you to say," Kara D squealed, putting an arm around Barry as she smiled lovingly at him. "I love you too, Barry." She turned back to Clark and Lois. "Not that I regret what I had with Mon-El while it lasted, but I've never been happier than I am now with Barry. He tends to bring out the best in me whenever I'm feeling downcast."

Clark smiled. "I'm really happy for the both of you."

"Thanks," Barry said.

"You better keep my sister happy," Alex said, giving Barry a firm look. "Because if you hurt her in any way, I don't care how fast you are, your powers won't save you from my wrath."

"Relax, Alex, Barry would never in a million years hurt me," Kara D chuckled.

"Doesn't hurt to make sure of that," Alex pointed out.

"Besides, I'm sure Kara is more than capable of handling Barry herself if he hurts her," Kara K remarked.

"You make a good point there," Alex said.

"Trust me, I'd rather trap myself in the Speed Force for all of eternity than hurt Kara," Barry said.

"A Kryptonian and a speedster dating? That's gonna be one hell of a very powerful offspring if he or she inherits both of her parents' powers," Lois said.

"Truthfully, we don't know what would actually happen in that scenario," Clark said. "For all we know, if the child doesn't inherit both sets of powers, they might end up having either only the Speed Force or the Kryptonian ones. Or maybe, as unlikely as it seems, the child, for some reason, won't have any powers at all."

"That's something Barry and I haven't yet discussed," Kara D said.

"Having kids is the last thing on our minds right now," Barry added. "I mean, I'd love for me and Kara to have them someday, but right now isn't the best time."

"Word of advice, make sure you're two hundred percent ready before deciding to take that leap," Lois said.

"We'll keep that in mind," Kara D said, feeling as if she was talking to her mother due to Lois' resemblance to Alura.

Ollie, Chloe, and Dinah were standing with Oliver, Laurel-One, Laurel-Two, Sara, Roy, Thea, Quentin, and Diggle.

"Wait, you're another version of Laurel?" Quentin said to Dinah, as he regarded her incredulously. Aside from the blonde hair and green eyes, this woman looked nothing like his daughter.

"Well, unlike your daughter, people don't call me by my middle name," Dinah replied. "Also, I don't have a sister or any siblings for that matter and my father's name was Larry, not Quentin."

"Well, Larry is Dad's middle name," Laurel-One pointed out.

"You two look nothing like Laurel and Oliver," Quentin said to Dinah and Ollie with disbelief.

"And your Oliver looks and acts nothing like my husband despite them having the same name and fetish for archery and green leather," Chloe countered.

"Don't ask me to explain it, Quentin, but on their Earth, many people have the same names as people here and lead lives similar to that of their namesakes despite looking physically different," Oliver said.

"A few years ago, I would've chalked that up to crazy nonsense, but considering all we've seen, I guess anything is worth believing these days," Quentin said.

"This is the world we live in now, Dad," Sara said.

"I can't believe you're Oliver," Roy said to Ollie. "Not that he's a bad guy or anything, but our Oliver is never as chill and laid-back as you seem to be."

"Trust me, I figured that out the moment I met Grumpy Pants," Ollie said.

All of them chuckled at Ollie's nickname for his counterpart, while Oliver rolled his eyes.

"Believe it or not, even our Ollie has his share of broody moments," Dinah said. "Don't let his quippy exterior fool any of you."

"Actually, my dear hubby has mellowed out even more over the years, especially ever since we had our son," Chloe said, putting an arm around Ollie while giving Dinah a mock-glare.

"You have a son too?" Oliver asked his counterpart.

"Yep, his name is Roy," Ollie said.

"Really?" Roy asked, as he, Oliver, Thea, Sara, the Laurels, Quentin, and Diggle all looked intrigued.

"Roy Sullivan-Queen," Chloe said.

"That's a nice name," Roy said.

"You're only saying that because Roy is your name too," Thea said.

"No, I'm not," Roy said. "I really do think it's a nice name."

"What's your son's name?" Chloe asked Oliver.

"William," Oliver simply said, deciding against giving out his son's last name.

Diggle turned to Chloe. "So you're pretty much your Earth's version of Felicity."

"Well, according to what Ollie told me about her, I may as well be," Chloe said. "Speaking of Felicity, where is she? I would've liked to meet my alleged inter-dimensional counterpart while on this Earth."

"Felicity is no longer with us," Oliver answered, sadly.

Chloe frowned, getting a horrible feeling. "What do you mean?"

The looks on the faces of those from Earth-1 (or Earth-2 in Laurel-Two's case) was more than enough to make Chloe, Ollie, and Dinah realized something dreadful must've happened.

"Don't tell us your nice, techie lady friend is..." Ollie trailed off, unable to finish his sentence.

"She is," Oliver confirmed, his heart heavy as he thought back to the events of that horrible day.

"I'm sorry, man," Ollie apologized. "What happened to her if you don't mind me asking?"

"A murderous psychopath wanted to prove a twisted and very untrue point to Oliver, that's what happened," Laurel-Two answered, disgust in her voice at the thought of Adrian Chase. To this day, she was very grateful that Oliver had talked her out of working with that madman.

"Not only did we lose Felicity, but we also lost a couple of our other teammates," Diggle said.

"Not to mention William's mother," Thea added, sadly.

"We're really sorry for your losses," Chloe said, with sympathy.

"I'm gonna go grab a bite to eat and something to drink," Quentin said.

"I'll come with you," Laurel-One said, as she and Quentin headed over to the refreshment table.

"I could use a little something to put in my body too," Roy said, before he and Thea, with their arms around each other, also headed off.

"I had no idea you were from a different Earth," Lena said, as she and Tess were conversing.

"Not only that, but my birth name is Lutessa Lena Luthor and, like you, I'm the half-sister of Lex Luthor," Tess said.

Lena frowned in shock. "You're serious?"

"We may look physically different, but we're inter-dimensional counterparts," Tess stated.

Lena took a moment to process this information. "Wow, that's... that's one I wasn't expecting."

"I understand it's a lot to take in," Tess said.

"Well, it's not everyday you meet another version of yourself from another Earth," Lena pointed out, before a realization suddenly occurred to her. "You know, that talk you gave me months ago, when you convinced me not to kill Morgan Edge, suddenly makes a lot more sense. There's one line in particular that stood out: 'it's not your family members' actions that define who you are, it's your own actions'."

"You were absolutely spot-on when you said I was speaking from experience," Tess said. "I didn't want you to lose your way like I did for a time before my friends helped me redeem myself."

"I assume your version of the Luthor family is just as dysfunctional as mine," Lena said.

"Some things remain consistent no matter the universe," Tess said. "There's something else I need..."

"Why am I not surprised you two are getting along so well?" Kara D asked, as she, Barry, and Alex walked over to the two women.

"Kara, your friend Tess just revealed that she's my counterpart," Lena said. "I never realized I was more or less talking to myself the night we took on Edge."

"She's not really you, Lena," Kara D pointed out.

"I know that, but that doesn't make it any less astonishing," Lena said, and Kara D nodded in agreement.

Caitlin was sitting at a table finishing up a glass of champagne, not far from where Cisco, Harry, and Winn were conversing. She was deep in thought as she grabbed a bottle of champagne and refilled her glass.

"What's a beautiful amiga like you doing sitting all alone when there's a party in full swing?"

Caitlin turned around to the person who had spoken and saw Bart standing there with a plate of four sandwiches in his hand.

"I just have quite a bit on my mind," Caitlin replied, before taking another sip of her champagne.

"I can tell judging by that long face of yours," Bart said.

"If you don't mind, I'd like to be alone right now," Caitlin said, politely.

"Come on, the least you could do is enjoy a bit of company and get to know this gringo," Bart said. "Where's the harm in that?"

Caitlin smiled, her mood suddenly brighter. "You know what? That doesn't sound like a bad idea."

"You mind if I sit here then?" Bart asked, referring to the empty chair next to her.

Caitlin shook her hand. "Not at all."

Bart sat down and took a bite of one of his sandwiches. "What's got you down? You may not know me, but I'm here if you're up to talking about what's going on in that gorgeous brain."

Caitlin sighed, setting her champagne down on the table. "There's this friend that I have these feelings for and I was open to the possibility of becoming more than friends with him, but after recent events, I don't think that's possible anymore."

"Oh," Bart said. "Is that guy anybody who's here right now?"

"Yeah, it's Conner," Caitlin answered, much to Bart's surprise. "He and I are good friends and we hung out a few times, but now that..."

"Wait, I get it now," Bart said. "You have feelings for Conner and was hoping that you and him would get together, but with his girlfriend back, that hope suddenly went out the door."

"Pretty much," Caitlin nodded.

"Considering your good looks, I'm sure you won't have too much of a problem finding somebody one day," Bart said.

"I'm Caitlin Snow," Caitlin introduced herself as he held out her hand.

"Bart Allen," Bart replied as he shook her hand.

Caitlin raised an eyebrow in surprise. "So you're Barry's Earth-21 counterpart."

"Guess so, except that I'm actually from the future while Barry isn't," Bart said.

"You're from the future?" Caitlin asked.

"Yep, long story," Bart said. "How do you know Barry?"

"We've been working together ever since he became The Flash," Caitlin answered.

"Cool," Bart said. "I'm sure you got some pretty interesting stories to share."

"I'd like to hear your stories too," Caitlin said.

"Sure thing, Caity," Bart nodded, before he and Caitlin began exchanging tales.

"What's going on, Kon? Whatever it is must be pretty serious if you want us to talk in private," Courtney said, as Conner had led her over to a part of the hangar that was far from everyone else.

"There's something I never got around to doing," Conner told her.

Courtney frowned. "Which is?"

"The thing that I wanted to do before you, uh, died," Conner answered.

"And what exactly is this 'thing'?" Courtney asked, curious.

Taking a deep breath, Conner got down on his knee, dug into his jeans pocket, and was about to pull something out when the sound of glass shattering suddenly got the attention of everyone in the hangar.

The commotion was caused by Ultraman, Overman, Overgirl, and Owlman, who all had flown into the hangar through the windows, while Andrea, Inertia, Icicle, Volcana, Amazon Queen, Dark Arrow, Dark Arsenal, Prometheus, Deathstroke, Dark Siren, and a number of masked soldiers in combat uniforms who were all armed with machine guns stormed in through the entrance.

"Oh, you've got to be kidding me," Laurel-Two groaned.

"Nazis?" Oliver, Sara, Quentin, and Diggle said at the same time in disbelief as they noticed the symbols on the soldiers' uniforms.

"I hate Nazis," Ollie, Chloe, Dinah, Laurel-One, and Laurel-Two added in unison.

As the Nazi soldiers opened fire, Barry and Bart immediately sped in the path of the bullets and effortlessly caught them in their bare hands before the bullets could hit anyone in the hangar. The two heard a familiar whoosh and turned to see Inertia smirking at them.

"Catch me if you can," the green-clad speedster taunted, before speeding off.

"I got this," Bart said, before speeding after Inertia.

Barry sped around, catching more bullets that were fired by the soldiers.

Taking off his glasses, Clark sped around like a tornado and was suddenly in his Superman suit a moment later. He and Kara K, who hadn't brought her own suit along, flew up into the air, while Lois clenched her fists and rushed into the action.

Kara D took off her glasses before flying up into the air, while Alex clenched her fists and rushed into the action.

Tess clicked a button on her watch, instantly transforming into her Red Tornado form.

Lena's eyes went wide in shock. "You're..."

"Yes, I'm Red Tornado," Tess replied, before flying up in the air and hurling a powerful gust of wind at some of the soldiers, sweeping them off their feet as they went flying.

Lena took out a small device from the inside of her boot and pressed a button on it. A retractable blade shot of the device and Lena rushed into the action as well.

"I'd tell you to get somewhere safe so I don't risk losing you again, but I guess that'd be pointless," Conner said to Courtney.

"You know me very well," she replied.

Conner flew into the action, while Courtney held out her hand before her cosmic staff materialized in it.

Clark, Kara K, and Kara D hovered in front of Ultraman, Overman, and Overgirl respectively.

"Ultraman?" Clark asked in disbelief as he recognized the very familiar 'U' symbol on his opponent's chest.

"Nice to see you again, Kent," Ultraman replied sarcastically, his voice distorted behind the mask he was wearing. "You're going to pay for making a fool out of me."

He flew right at Clark at full speed, slamming both of his fists into the blue and red Kryptonian's chest hard. The force of the blow resulted in a powerful shockwave that shattered all the windows in the hangar, while Clark was sent hurtling back as he crashed through a wall, damaging it on impact, and landed on the ground outside. Ultraman flew outside after Clark.

"Who are you?" Kara K and Kara D demanded in unison.

"Find out for yourselves," Overman taunted.

Kara K and Overman flew at each other, while Kara D and Overgirl did the same simultaneously, resulting in another powerful shockwave as the Kryptonians collided.

Kara K and Overman struggled against each other as they flew upwards, crashing into the racks above and damaging some of the bars. Kara K kicked Overman in the chest, sending him crashing to the ground. As she flew outside, Overman got up and flew outside after her.

Kara D also flew outside, leaving the hangar through one of the broken windows, as Overgirl followed her.

"Barry, I need you to run to Star City and grab our weapons now," Oliver ordered, right before he suddenly raised his hand and caught an arrow fired at him.

Barry nodded and sped off at full speed.

Oliver turned to the person who fired the arrow at him and saw Dark Arrow stalking towards him. He took out a small device hidden in the sleeve of his dark brown leather jacket and pressed a button. The device expanded into a bow and Oliver immediately rushed Dark Arrow as the two began to engage each other.

Ollie took out a similar device from a clip on his belt and pressed a button, causing the device to expand into a bow. He and Chloe immediately took fighting stances as they were approached by Dark Arsenal.

"I never realized just how handsome that face is seeing it from this perspective," Dark Arsenal remarked in a distorted voice as he regarded Ollie, who frowned in confusion at the comment. "Too bad it's gonna be ruined by blood and bruises after I'm done with ya."

"Maybe it's your face you'll need to worry about instead," Ollie countered.

"Bring it on," Dark Arsenal challenged.

He charged at Ollie and Chloe, who both sidestepped. Ollie threw a punch at Dark Arsenal's face, but Dark Arsenal blocked it with his bow. Chloe tried to punch him too, but he ducked under her blow and tried to hit her with his bow, only for Chloe to dodge the attack.

Amazon Queen looked up at Tess, who sent more soldiers flying with her gusts of wind, and leapt diagonally up at her. She slammed her elbow into Tess' torso, sending the android woman flying many meters back. Tess steadied herself before she could land the ground and, in retaliation, summoned a cyclone that swept Amazon Queen up into the air, sending her slamming against the ceiling hard. Amazon Queen dropped back down and landed on the floor hard. She got back up and lunged at Tess with her sword, but Tess flew out of the way.

Conner grabbed two soldiers in each hand and slammed their heads together, knocking them out. He was about to take out some more soldiers when a strong punch to the temple sent him flying several meters. He got back up and turned to the person who had attacked him – a woman in a black trench coat.

The woman deactivated her mask, shocking Conner as he saw her face.

"Andrea?" the half-Kryptonian said in disbelief. "What are you... how did..."

Conner was interrupted as Andrea leapt at him and punched him in the chest hard, sending him crashing into a wall, damaging it on impact.

Andrea herself was sent flying as a blast of energy from Courtney's staff struck her.

"Keep your filthy paws off of him, you bitch!" Courtney snarled, as she was hovering in the air.

She fired another blast of energy from her staff at Andrea, who rolled out of the way to avoid it and got back to her feet.

"Wait, Andrea?" Courtney frowned as she got a clear look at Andrea's face. "What are you doing?! You're supposed to be one of the good guys!"

"Well, people change," Andrea said with a smirk, before leaping up at Courtney, who moved out of the way, narrowly avoiding Andrea literally taking her head off with a punch.

Conner leapt at Andrea, tackling her to the ground before punching her in the face several times. Andrea elbowed Conner in the chest, knocking him back, and got back to her feet before they continued exchanging blows.

Courtney descended to the ground, about to help Conner, but she was approached by Owlman. She swung her staff as she tried to hit him, but Owlman blocked the weapon with his gauntlet. He tried to punch Courtney, but she disappeared and teleported behind him. Courtney kicked Owlman in the back, sending him flying several feet before he landed on the ground. Courtney fired her staff at him, but Owlman rolled away and got back to his feet. He threw some explosive balls at Courtney, but she leapt and flipped in the air as she avoided the blast.

"I think it's time you introduced these guys to your mean roommate," Cisco said to Caitlin, as he took out some Nazi soldiers with his vibe blasts.

Caitlin swallowed hard. A moment later, her eyes and hair turned white, her lips grew darker, and her skin became pale. She was now Frost.

"Time to have some fun," Frost remarked as she started blasting shards of ice at the soldiers.

Winn and Harry were approached by two Nazi soldiers, who cornered the two men and opened fire. Wally, now clad in his Kid Flash suit, appeared in a flash of yellow lighting, sped Winn and Harry away from the bullets, and quickly knocked out the two soldiers.

Wally was then abruptly thrown to the ground by a blast of flames that struck him from behind. He got back to his feet and saw Volcana standing before him, her hands ablaze. She hurled another blast of flames at him, but Wally sped out of the way. Volcana fired another blast of flames, only for Wally to avoid them again.

Across the way, Frost was still taking out soldiers with shards of ice when she was approached by Icicle.

"I've always wanted to fight someone with ice powers like mine," Icicle said eagerly, smirking as he generated a long stick of ice the shape of a spear. "Let's find out who has the colder touch."

Frost smirked back as she transformed her left arm into a long blade of ice. "It'll be my pleasure."

With that, she and Icicle engaged each other, their ice weapons clashing in a fierce effort to prove that one was more efficient at their cold powers than the other.

(Outside)

Clark got back to his feet as Ultraman hovered above him.

"So you're that Clark Luthor that I met all those years ago," Clark said.

"That's right," Ultraman replied, deactivating his mask.

"What are you doing on this Earth?" Clark demanded. "How did you even get here in the first place?"

"Do you really think I'd shoot myself in the foot and reveal that information to you?" Ultraman said, glaring at his doppelganger. "I see you finally took to the skies. Good, wouldn't want this to be too easy."

He flew at Clark, who caught Ultraman's fist and clenched it. Ultraman threw a punch with his other hand, but Clark caught that fist as well. As the two grunted and struggled against each other's immense strength, Clark flew up into the air, wanting to take the fight away from any buildings and other property that may get damaged.

Ultraman head-butted Clark in the nose hard, causing it to bleed. Despite the pain, Clark didn't let go as he continued rising in the air. Ultraman then kicked Clark in the torso and that did the trick as Clark was sent flying many feet back. Clark steadied himself before flying high up in a blue and red blur. Narrowing his eyes, Ultraman flew up after Clark in a black blur and the two Kryptonians soon traded powerful blows.

As the two fought high up in the air, Overman punched Kara K in the face twice, knocking her many meters back. He flew at her as he tried to punch her again, but Kara K sidestepped. She punched Overman in the abdomen and followed up with an uppercut under his chin, hitting him so hard that he went hurtling hundreds of feet higher in the sky. Kara K flew up after Overman, who unleashed his heat vision at her, but Kara K swerved to avoid the beam. Kara K fired her own heat vision at the same time Overman fired his again, resulting in the two beams clashing halfway in an effort to overpower the other.

Also high up in the air, Overgirl sent Kara D flying many meters back with a punch to her torso. Kara D steadied herself as Overgirl flew at her. Overgirl tried to punch Kara D in the face, but Kara D sidestepped before sending Overgirl hurtling straight up into the sky with an uppercut. She flew up after Overgirl and their battle soon continued.

(S.T.A.R. Labs hangar)

Lois spin-kicked a soldier in the stomach, causing him to double over. She followed up with an elbow to the soldier's face, knocking him out. Picking up the gun of the downed soldier, she bashed the butt of it in another soldier's face, knocking him out too, before hitting another soldier in the chest with the gun and then elbowing him in the face.

Alex fired at two soldiers with a gun of a downed soldier she had picked up, killing them. She then kicked another soldier in the stomach and punched him in the face, sending him down, before punching another one out.

Lena hit a soldier in the chest with her sharp-edged baton and kicked him in the abdomen, knocking him down. She spun around, hitting another soldier with her baton. She then elbowed that soldier in the face, knocking him out.

Dinah grabbed a soldier's neck between her legs and flipped him to the ground. She then punched that soldier in the face, knocking him out, and grabbed another soldier's arm before throwing him to the ground.

Oliver and Dark Arrow were in a stalemate as they kept on blocking and avoiding each other's punches, kicks, and other attacks. They tried to kick each other at the same time, only for the bottom of their boots to clash. Oliver then backed up several feet, nocked an arrow, and fired it. Dark Arrow swatted the arrow away with his bow before firing one of his own. However, Oliver fired a second arrow at the same time, only for the arrows to deflect each other. They fired at each other again, only to receive the same result.

Suddenly, a streak of yellow-orange lightning shot past and a quiver of arrows were strapped to Oliver's back all of a sudden.

Sara slammed a soldier's head against the wall, knocking him out. She punched another soldier down and, taking his machine gun to use as a melee weapon, attacked another soldier with it.

Then, that streak of yellow-orange lightning shot past and Sara was suddenly wielding her bo-staff instead of the gun she had a moment ago.

Laurel-One and Laurel-Two unleashed their sonic screams simultaneously, each sending several soldiers flying back. The streak of lightning shot past them as well and the two Laurels each had a baton in their hands.

Diggle fired a machine gun at several soldiers, killing them. He ducked under another soldier's punch before hitting the soldier in the face with the butt of the gun, knocking him out.

Roy flip-kicked a soldier's gun out of his hand and punched the soldier in the chest before following up with a punch to his face, knocking the soldier out. Thea disarmed a soldier of his gun and, in a spin motion, whacked him in the face with the gun, taking the soldier down.

Then, the yellow-orange streak shot past them and Roy suddenly had a bow in his hand and a quiver of arrows on his back, while Thea was suddenly armed with her katana.

As Laurel-One and Laurel-Two took down more soldiers with their batons and sonic screams, they were approached by Dark Siren. Laurel-Two noticed that Siren's uniform resembled her old Black Siren suit.

"I'm gonna enjoy killing two birdies with one stone," Dark Siren said, as she took out a pair of knives.

"Not if we kill you first," Laurel-Two shot back, before she and Laurel-One rushed Dark Siren, who avoided their batons.

Dark Siren unleashed her sonic scream, throwing the two Laurels flying back. As the Laurels got back up, Dark Siren unleashed her sonic scream again, but Laurel-One and Laurel-Two flipped out of the way in opposite directions to avoid it.

Diggle grabbed a soldier's arm and threw him to the ground. He pointed his machine gun at another soldier, about to fire it, when a gunshot knocked it out of his hand. Diggle turned to the person responsible and saw Deathstroke standing there with a pistol in his hand.

"Slade," Diggle snarled. "So you haven't really changed at all."

Thea and Roy appeared next to Diggle, glaring daggers at Deathstroke.

"So all this time you had us believing that you were on our side now, while you were really screwing with us?" Thea spat out in disgust at the man who appeared to be her mother's killer.

Deathstroke put his gun away and unsheathed his sword. "I'll make all of your deaths quick but painful."

Roy rushed Deathstroke, swinging his bow, but Deathstroke blocked Roy's bow with his sword and kicked Roy to the ground. Deathstroke punched Diggle in the face, knocking him to the ground too, before avoiding a kick from Thea. Thea swung her katana at Deathstroke, but he blocked it with his sword before kicking Thea in the knee and elbowing her in the face, knocking her down as well. Roy, Diggle, and Thea got back to their feet and tried to strike Deathstroke simultaneously, but he deftly avoided their attacks.

Sara kneed a soldier in the chest before punching him in the face, taking him down. She then spun around and quickly took out two more soldiers with her bo-staff. She glanced around before noticing Prometheus, sword in hand, approaching her.

Dinah joined Sara's side and the two stared down Prometheus.

"One party, two funerals," Prometheus remarked.

Sara twirled her staff as she took a fighting stance. "Wanna fight?"

Unsheathing a second sword, Prometheus spun around and tried to strike Sara with them, but she blocked the swords with her staff. Dinah threw a kick at Prometheus, who dodged under her foot and tried to strike her with her sword. Dinah jumped back, avoiding the blade. She unleashed her sonic scream, but Prometheus leapt out of the way.

(Outside)

Clark and Ultraman were exchanging powerful punches, their blows giving off one shockwave after another that, thankfully, didn't reach any buildings since they were thousands of feet up in the air.

"The last time we met, I gave you the opportunity to redeem yourself and become the hero your world needed," Clark said angrily as he delivered another punch to Ultraman's face, knocking him a several meters back. "Did you even try to change your ways?"

"I did try, but my ungrateful planet rejected me!" Ultraman snarled, as he steadied himself. "Attempting the Good Samaritan route was the greatest mistake of my life and I'll never listen to someone like you again!"

He angrily slammed his hands together, producing a much more powerful shockwave that threw Clark many meters back. Clark steadied himself and was too late to avoid Ultraman's fist slamming into the side of his head, sending him flying further back.

Clark steadied himself again and turned to Ultraman. "Whatever you and your allies are planning, we're gonna stop you!"

"You mean try to!" Ultraman shouted back.

They fired heat vision at each other and their beams clashed halfway in a fierce effort to overpower the other.

Kara K was sent flying back by a punch from Overman before she steadied herself and flew back at him. She rammed into Overman hard, knocking him many meters back. She flew at him again and kicked his chest, sending him crashing to the ground, a part of which became damaged on impact. Overman got back up and fired heat vision up at Kara K, who swerved to avoid the blast as she flew down towards him. She fired her own heat vision in retaliation, but Overman avoided it as he flew back up towards her. Overman tried to punch her, but Kara K caught his arm and kneed Overman in the abdomen. She then punched him in the throat, causing him to clutch it. She flew behind Overman and punched him in the back, knocking him to the ground again.

(S.T.A.R. Labs hangar)

Dark Arsenal was holding his own quite well against the combined efforts of Ollie and Chloe. He sent Chloe to the ground with a kick to her stomach and then tried to kick Ollie as well, but Ollie sidestepped and punched Dark Arsenal in the face, staggering him back. As Dark Arsenal fired an arrow at Chloe, who got back to her feet, Ollie reached his arm out with an alarmed look and caught the arrow, which was inches from hitting his wife's chest. Glaring daggers at Dark Arsenal, Ollie fired an arrow at him in retaliation, but Dark Arsenal deflected it with an arrow of his own.

Oliver fired yet another arrow at Dark Arrow, only for the latter to deflect it with an arrow of his own. The two then swung and clashed their bows. As the fight went on, it seemed that their deadlock would go on forever. Then, Dark Arrow managed to kick Oliver in the stomach and followed that up with a punch to Oliver's chest, knocking him to the ground. Dark Arrow then placed his foot on Oliver's chest, pinning him down, and pointed an arrow at Oliver's neck.

Laurel-One unleashed her sonic scream at Dark Siren, but the latter ducked out of the way. Dark Siren threw one of her knives at Laurel-Two, who dodged it and retaliated by unleashing her sonic scream, which sent Dark Siren flying back.

Sara continued to block the strikes Prometheus' swords with her bo-staff. Prometheus tried to punch her, but Sara grabbed his wrist and elbowed him in the face hard, causing Prometheus to drop both of his swords to the ground. Dinah then delivered a well-placed punch to Prometheus' face, knocking him out.

"Nice," Sara said, triumphantly.

"Yeah," Dinah agreed.

Wally was speeding around Volcana in circles, trapping her within a powerful vortex as she tried in vain to unleash blasts flames and was slowly losing air. After about thirty more seconds, Volcana finally passed out and dropped to the ground as Wally stopped running, a triumphant smirk on his face.

Frost and Icicle continued their clash of ice weapons as one haven't yet managed to gain an advantage over the other. Desperate to overpower his opponent, Icicle rushed forward in an attempt to drive the spear of ice through Frost's chest, but she sidestepped. He then swung his icy spear at her, but Frost ducked under it. While Frost remained relatively calm, Icicle grew more desperate as the fight went on and this proved to be his undoing since his moves started becoming sloppy, allowing Frost to gain an opening as she dealt a slit across his cheek and knocked him out two quick punches to the face. She looked down at Icicle with a satisfied smirk.

Overgirl flew at Kara D, grabbed her by the throat, and flung her down. Kara D was sent crashing back into the hangar through a window before landing on the floor hard like a meteor. The impact of Kara D's fall was so powerful that Cisco, who happened to be no more than two feet away, was thrown to the ground and knocked out cold as he hit his head.

A pair of soldiers approached Cisco's unconscious form with guns, but before they open fire, Barry suddenly sped in and took the soldiers out.

Just as Kara D was about to get back up, Overgirl flew into the hangar and descended behind her.

"Stay down!" Overgirl warned, her eyes glowing behind her mask.

At that moment, Overman came crashing into the hangar through a wall and collided right into Overgirl, the impact throwing them roughly on the ground.

Kara K flew into the hangar in a blur and descended next to Kara D, who got back to her feet. As Overman and Overgirl got back up and glared at the two women, Kara K and Kara D slammed their hands together simultaneously, producing a powerful shockwave that hit Overman and Overgirl dead on as they went flying back. Everyone else in the hangar, heroes and Nazis alike, were physically stunned by the loud, deafening sound that resulted from the shockwave.

As Overman and Overgirl stumbled back to their feet, Kara D approached Overgirl and punched her in the stomach, sending her sliding along the ground. Overman was about to attack Kara D in retaliation when Overgirl started groaning in pain.

"No!" Overman shouted in horror, before speeding over to Overgirl, who was on the ground clutching her chest.

Noticing what was happening, Dark Arrow knocked Oliver down with a hard punch before suddenly abandoning the fight and rushed over to where Overman was tending to Overgirl. Dark Arrow picked Overgirl up and slung her over his shoulder.

Overman tapped his earpiece. "Stand down! Everybody, stand down against your opponents immediately! Overgirl is hurt!"

Dark Arrow threw down a very advanced flash-bang grenade, which blinded every single person in the hangar, including the Kryptonians.

At the same time, Amazon Queen dodged the latest cyclone that Tess tried to attack her with before she suddenly leapt out of the hangar through one of the shattered windows.

Andrea was sent flying back by a blast of Conner's heat vision that struck her in the chest. She got back up and, instead of continuing her battle, leapt out of the hangar through the window.

Conner considered going after Andrea, but then he noticed that Owlman was holding Courtney up by the neck and was about to stab her with a knife.

"No!" Conner yelled in horror. He couldn't lose her all over again!

In a blur of movement, Conner slammed into Owlman, sending the latter flying off, and grabbed Courtney in his arms.

"Are you okay, Court?" Conner asked, relieved that he had saved her.

"I'm fine, Kon," Courtney replied.

Dark Arsenal backed away from Ollie and Chloe, who both shielded their eyes as he threw down a flash-bang grenade, which was just as advanced as the one Dark Arrow had.

Deathstroke and Dark Siren threw down similar explosives.

Bart and Inertia were speeding through Central City, running along the streets as well as up and down the various buildings as they exchanged high-speed punches. Having heard Overman's orders on the comms, Inertia threw a quick punch into Bart's face, staggering the latter back, and sped down an intersecting street in an effort to escape from Bart. Bart quickly recovered and sped down the same street after Inertia, quickly catching up to the green-clad speedster as he tackled him to the ground. Inertia glanced around, noticing a large truck among the vehicles on the street and turned to a young woman who was walking on the sidewalk. Smirking, Inertia sped over to the young woman, grabbed her, and put her in the middle of the street directly in the path of the oncoming truck before speeding away.

Bart saw this and, instead of pursuing his opponent, sped the young woman away from the truck and got her to safety on the sidewalk. He then sped off.

Ultraman had Clark in a firm chokehold from behind as the latter struggled to break out of the former's grip.

"I see you're still no match for me," Ultraman said with a smirk. "Not surprising considering that, unlike me, you're too afraid to utilize the full extent of your abilities."

"And by that, you mean world domination and mass murder," Clark retorted.

He elbowed Ultraman in the chest, forcing the latter to let go of him. In a spin motion, Clark delivered an uppercut under Ultraman's chin, sending him hurtling hundreds of feet higher into the air. Clark flew up after Ultraman and tried to punch him again, but Ultraman recovered just in time to avoid Clark's fist.

"Stand down! Everybody, stand down against your opponents immediately! Overgirl is hurt!"

Ultraman paused for a few moments to listen to Overman's voice on the comms. However, due to this distraction, he was unable to avoid a punch that Clark dealt him to the face, sending him flying many meters back. Ultraman steadied himself as Clark flew at him with another punch. Ultraman sidestepped, avoiding Clark's fist, and unleashed his heat vision. As the blast hit Clark in the chest and threw him back, Ultraman immediately followed up with a thunderclap, which threw Clark back much further.

Clark steadied himself and flew back up. He looked around for Ultraman, but the other Kryptonian was nowhere to be seen.

(S.T.A.R. Labs hangar)

Once the blinding lights and all the smoke from the flash-bang grenades faded, the individuals of Earth-1, Earth-2, Earth-21, and Earth-38 looked around with horrified and worried expressions to find that all the enemies – except Prometheus, Icicle, and Volcana, the three of whom were out cold and lying on the ground among the many dead or unconscious Nazi soldiers – were gone.