A/N: I do not own The Flash or Supergirl.

Hello everyone! I have returned with a brand new chapter! I know I took long in posting and i'm sorry. I promise you and myself that I am going to bring myself to finish this story. I don't want it to be one of those stories that I don't finish and I leave everyone hanging. I hope you enjoy the chapter, and thank you for your neverending support.


When Barry returned to the DEO with Clark in tow, he knew he had to tell someone about Kara's 'Red Kryptonite' phase. Unfortunately, the first person there was Alex...and when she saw Barry empty handed, she freaked out. Okay, 'freak out' wouldn't begin to describe Alex's reaction. Not only was her sister running around with The Joker and Harley Quinn, but she was infected with Red Kryptonite. Barry knew Alex had a right to freak out, but what really put Barry on edge was Hank was standing nearby...and he looked less than pleased with Barry's revelation.

"Okay, run by me again what exactly happened to Kara." Alex crossed her arms while glancing at Barry with concern. "She came to save you and then Harley stabs her with some syringe in the neck?"

"Yeah, then she choked me and we tussled," Barry responded. "Clark suggested we come back here to lick our wounds, so...here we are."

"Barry also blurted out he loved Kara," Clark added, although Barry didn't seem impressed with Clark telling everyone. "What, it was an important detail. I thought everyone should know."

"Well, I do love Kara," Barry answered.

"Don't say that." Hank furrowed his eyebrows towards Barry.

"Say what?" Barry innocently responded.

"That you love Kara," Hank replied. "You're overly emotional right now. Snap out of it."

"Anyway," Barry decided to change the subject while trying not to show disdain towards Hank undermining his feelings. "Kara was injected with Red Kryptonite. I know Clark said Red Kryptonite makes you lose all your inhibitions, but does Red Kryptonite make you follow orders too? Almost like you're some mindless zombie?"

"No...it doesn't," Alex replied. "Joker and Harley laced that Red Kryptonite with something. And it had to have been something synthetic. That's why Kara listens to everything Joker says."

"Okay, so what's the plan to save her?" Barry questioned. "Is there a cure so we can turn her back to normal?"

"There is…" Alex said. "But unless we can analyze the substance Joker injected Kara with, we can't make an antidote. Did you see what happened to the syringe after they used it on Kara?"

"Um...Harley tossed it to the side." Barry revealed. "It should still be in that abandoned warehouse."

"Then go back to the abandoned warehouse and find it," Hank ordered.

"Yeah, that's like getting mugged and then going back to the same mugger to get mugged again." Barry pointed out. "It just sounds extremely repetitive."

"You love Kara, don't you?" Hank furrowed his eyebrows as Barry slowly nodded his head. "Then go find the syringe so we can save her…"

"I'll go with you, Barry," Clark said, but Barry immediately turned around and shook his head.

"Joker's going to be expecting you, Clark," Barry revealed. "We need to send someone who has never seen Joker and Harley Quinn before. They'd be a secret weapon of sorts." Barry's face appeared as if something dawned on him, causing him to snap his fingers. "We do have someone like that."

"What are you thinking?" Hank questioned.

"I hate saying this but...what about Mon-El?" Barry suggested.

"Mon-El?" Alex asked. "Barry, he's only been here a few days. We don't know what he's capable of."

"That's what makes him the perfect candidate." Barry turned his heels and left for Mon-El's room. "Besides, he's scared of Oliver. So that's bonus points in my book." Barry walked into Mon-El's room and noticed he was folding paper, which was a stark contrast to the destructive Mon-El they met earlier. "What are you doing?"

"Felicity suggested if I wanted to get rid of negative energy, I'd do origami," Mon-El explained before he held up what looked to be a completed work of origami. "Look, I made a swan."

"It's...very beautiful, Mon-El." Barry politely replied before clearing his throat. "Kara needs you and unfortunately so do I…"

"Okay, bring in Miss Bossy Pants." Mon-El shrugged his shoulders.

"She's not here," Barry explained. "Something happened to her and I need your help to fix it."

"Did you screw up your relationship with her already?" Mon-El sounded surprised. "Because...that means all the more reason to butt in and try to kiss her…"

"No, I didn't screw anything up." Barry retorted. "Joker did...and wait, you want to date Miss Bossy Pan-ugh...I mean...Kara?"

"She's hot," Mon-El replied. "And she's less of a challenge for me. Besides, why do you like her? You're not even from here."

"Who told you that?" Barry questioned.

"Your friend Cisco," Mon-El answered. "By the way, he's much better company than Oliver. And he's cooler than you. I wonder why he doesn't have a girlfriend..."

"Focus!" Barry snapped his fingers in Mon-El's face. "Kara is in trouble, and we need to save her. So...I need your help before Joker and Harley Quinn make her do something she's going to regret…"

"Okay, so where do we find her?" Mon-El wondered.

"First we have to find the syringe that Harley injected Kara with so Alex can get a sample of the synthetic Red Kryptonite mix," Barry explained. "I was a forensic scientist on my Earth, so that shouldn't be too hard to do. Then we create an antidote, find Kara and inject her with it. Simple, right?"

"It's the Joker, Barry." Mon-El reminded him. "Villains never make anything simple."

"Okay, you're right...but still..." Barry groaned. "Speaking of Cisco...I need to speak to him now."

"He was in the control room or something like that," Mon-El answered as Barry walked away from him. "Where are you going?"

"Just stay here, will you?" Barry asked, not even bothering to turn his head. Barry went to the control room and found Cisco eating donuts, and looking through a file. "Cisco...buddy...we need to talk."

"What's up?" Cisco turned his head and spotted Barry raising an eyebrow at him. "Ooh, something bad happened."

"No...everything is absolutely perfect...except for the fact Kara was injected with Red Kryptonite, so she thinks she's evil." Barry sighed. "Listen, I need you to do something for me...and I wouldn't ask if it wasn't important. I know you're not Felicity, but I need you to hack into the street cameras and get me a current location on the Joker."

"Well, I'm not Felicity but I think I can hack the street cameras. After all, I am pretty tech savvy." Cisco cracked his knuckles and started typing on the computer. Five seconds later, Cisco pressed the enter key and proudly smiled at Barry. "Done."

"I so owe you one." Barry muttered while staring at the screen. "Blackgate Penitentiary, huh?"

"What's he doing there?" Cisco asked.

"My guess? He's going to break out Poison Ivy…" Barry stared at the screen and noticed Kara with a black catsuit walking along the prison. "Looks like he's getting Kara to do his dirty work for him…"

"What a lowlife…" Cisco added as the two of them stared at the screen. "What are you going to do?"

"I want to go the prison and strangle Joker with my bare hands." Barry seethed while staring at the screen. "But I also know that I have to follow the plan. Get the syringe, make the antidote and save Kara."

"Smart man." Cisco patted Barry's arm. "So what is Mon-El going to contribute to your glorious plan."

"He's just someone Joker and Harley have never seen before," Barry replied. "Like I told Kara's cousin, people don't like what they don't understand. And they're really not going to understand Mon-El."

"Does that mean you'll take your own advice regarding Mon-El?" Cisco questioned. "Considering you don't like him very much."

"It's not that I don't like Mon-El." Barry scoffed. "He just keeps trying to charm Kara and I don't like that."

"Someone's a little peanut butter jelly…" Cisco spoke in a sing-song tone.

"I am not jealous." Barry insisted. "Especially not of that Daxamite, who thinks he can swoop in and steal Kara all because he's an alien from another planet. Stupid Mon-El…"

"I can hear you, you know." Mon-El walked into the control room, his eyes locked on the cameras. "Wow, Kara looks hot in that black body suit…, what a babe."

"What?!" Barry blurted out while clenching his fist at Mon-El.

"Cisco said that's what you call a really hot girl, right?" Mon-El nonchalantly asked.

"Yeah, but you can't call her that! That's my girlfriend you're talking about!" Barry yelled which immediately caused Alex, Hank, Oliver, and Felicity to run into the control room. "They may teach you how to be degrading on your planet, but on mine, we treat women with respect!"

"I'm not sure what's your problem with me, dude…" Mon-El furrowed his eyebrows, but the next thing Mon-El knew, Barry zipped Mon-El to the wall and pinned him there.

"Let's get one thing straight...don't call me dude you smug, pretentious...!" Barry angrily retorted but Barry was immediately grabbed by Oliver, who was trying to pull him away.

"Get Barry out of here, now," Hank told Oliver. "He needs to cool down!"

"Let's go," Oliver muttered while leading Barry to the hallway. As soon as Oliver and Barry were away from Mon-El, Oliver pinned Barry against the wall with force. "What the hell is wrong with you?! Picking fights with other people? This isn't like you! You're acting...like me. And Rao knows we don't need another one of me running around. So tell me what's bothering you, Barry?"

"I'll gladly tell you when you remove your hands from my neck." Barry choked out, causing Oliver to realize he was cutting off Barry's air circulation.

"Right...sorry." Oliver cleared his throat while removing his hands from Barry's neck. "Continue."

"I'm just frustrated…," Barry groaned. "Kara is in trouble, Mon-El is only interested in getting in her pants and Joker is out there doing who knows what. Joker getting out was my fault…, I'm the one that should be fixing this...not Winn, not the DEO, not Kara...me. And then after this...we can go home to our Earth."

"What?" Oliver appeared muddled, but to Barry's surprise, there was a mix of disappointment in his voice. "Barry, you can't just leave here…"

"Why? Being selfish caused enough problems." Barry dejectedly said. "All because I wanted something for myself, Kara's in a jam and Gotham City is about to be run by villains. I just accepted that I can't have everything I want."

"Barry, yes you can," Oliver said. "Look, if this is about what I said the other day, the I will be the first to admit I was wrong. You clearly care about Kara and there's no doubt Kara loves you."

"I don't know about that." Barry chuckled. "She never said anything about that. She...just stood there when I told her how I felt. I took that as my cue to hightail it out of there. Plus she looked murderous when I told her the second time."

"Barry…," Oliver sighed. "You are dense, my friend. The girl loves you, and you can tell by the way she stares at you...the way she always defends you...the fact there's a Kryptonian Bond between the two of you. There's love and mutual respect...and I've never seen you look at someone the way you look at her. She's special to you, Barry...and it's quite obvious. So leaving this Earth because you think you're the problem isn't helping anyone. You're going to prove Hank right, especially if you leave Kara when she needs you the most. Stay. Fight. For Kara."

"When did you take a motivational speech class?" Barry jested.

"Seriously…" Oliver chuckled. "Find Kara...save her from Joker. We can figure out the rest later. Just...do something for me."

"Anything," Barry responded.

"Don't kill Mon-El," Oliver replied. "He's a pain in the ass...but we need him. Like you said, he's the only one the Joker hasn't seen yet. And we need him if we're going to bring back Kara."

"Yeah, I know…" Barry muttered. "I don't know what's worse, the fact he's infatuated with Kara or the fact we need him."

"Both is pretty bad." Oliver chuckled. "Don't worry, you won't need him for long."

"I better not, I don't know how much more of him I could take," Barry admitted. Oliver couldn't help but chuckle at his friend until he realized Barry's face turned serious. "We're gonna save Kara, right?"

"No. You're going to save Kara." Oliver corrected him. "At this point, you're the only one who can."

"That's a huge chip on my shoulder." Barry sighed. "But, I can do this. Kara's counting on me..." Oliver and Barry stood in silence for a moment as Barry recollected his thoughts. He was going to be in for the fight of his life against the Joker...but Kara needed him...and that was where Barry's focus had to be at this point in time.


The Blackgate Penitentiary was normally quiet, especially during the overnight shift. Luckily for Joker, that was the best time to initiate his plan of letting out the crooks and weasels of Gotham City. The job was going to be easier this time around; they had a Red Kryptonite Supergirl on their side. Kara, Joker and Harley Quinn walked the hallways of the empty prison, glancing at all of the cells until the Joker found the one he wanted.

"Puddin', are you almost done yet?" Harley groaned. "The guards are going to check the floor soon, and we don't need to get locked in here...again."

"Be quiet, Harley." Joker glared at her. "They're going to find us faster if you keep yapping away." Joker continued walking along the floor while Kara stood alongside Harley, but Harley couldn't help but notice that Kara's eyes were focused on Joker.

"What are you staring at?" Harley questioned Kara while she nonchalantly shrugged her shoulders.

"Your boyfriend's really hot," Kara smirked while flipping her blonde hair to the side. "I'm not quite sure what I saw in that Barry Allen kid when I was a goody-goody, but man that Joker guy is a piece of work."

"Excuse you, but you can't have him." Harley angrily hissed.

"Why not?" Kara scoffed while crossing her arms. "All's fair in love and war, right? I mean, villains don't honor the relationship code…"

"You can't have Joker." Harley angrily pointed a finger at Kara. "He's mine. And if I catch you near him, I'll break your neck blondie…"

"So...I shouldn't do...this?" Kara walked ahead of Harley until she reached the Joker, a sly smile forming on her face. "Joker, I just wanted to tell you, I think you smell absolutely fantastic. What perfume is that? Evil No.5?" Joker stopped for a moment and glanced at Kara in awe, a smirk now appearing on his face.

"Hmm...impressive that you noticed Supergirl…" Joker chortled. "I must say...being evil makes you even more attractive."

"Does it now?" Kara purred in response.

"Excuse you, puddin'." Harley appeared offended as Joker shooed Harley with his hand.

"Not now, Harley." Joker continued looking at Kara, who glanced back at him with lust. "The grown ups are talking." Harley appeared miffed as Kara followed Joker to one of the cages, prompting her to cross her arms with anger. As Kara walked away with Joker, Harley fumed. She was not about to let some snot nosed superhero under a Red Kryptonite spell steal her man…

"Puddin', you've only known Kryptonite Supergirl for a few hours." Harley reminded him. "Are you really gonna throw away what we had for...her?"

"You're exaggerating again, Harley," Joker grumbled.

"I don't think I am." Harley retorted.

"Harley, I suggest you shut up before the guards come." Kara hissed.

"Or what, doll face?" Harley shouted. Kara immediately lit her eyes and shot a laser beam towards Harley's feet, ultimately provoking Harley to stay quiet. "Okay...you made your point."

"So where on earth is Poison Ivy anyway?" Kara turned around and continued walking.

"We'll release her in due time, Supergirl," Joker replied. "First we have to release a few other people along the way."

"Like who?" Harley wondered.

"Dr. Freeze, Penguin...the Riddler. Any of those names ring a bell, Harley? Or were you not listening to my plan?" Joker sounded exasperated while Kara smirked.

"She seems to have selective hearing Jokey-Poo…" Kara cooed while glancing at Joker adoringly.

"Indeed she does, Supergirl." Joker agreed. Kara gave Harley a smug glance before they stopped at Dr. Freeze's cell. "Freeze…, looks like you made bail…" Dr. Freeze turned around and spotted Kara who was furrowing her eyebrows at him. But Dr. Freeze wasn't intrigued by seeing the Girl of Steel there.

"Is this a joke, Joker?" Dr. Freeze scoffed. "She and her speedster boyfriend were the ones that put me in here in the first place."

"Does this look like the same girl that put you away?" Joker motioned towards Kara who was suddenly using her fingers to tiptoe along Dr. Freeze's shoulder. "For one thing, she's quite touchy."

"I can see that." Dr. Freeze raised an eyebrow towards her. "What did you do to her, Joker?"

"Let's just say that now she's just somebody that you used to know…" Joker chortled as Harley pretended to laugh along, but Kara turned towards Joker and nonchalantly shrugged her shoulders.

"I didn't think it was so funny…" Kara responded.

"You're right, it wasn't." Joker composed himself before Kara started walking away. "Where are you going?"

"While you make out with Dr. Freeze, I'm going to let everyone else out," Kara said as The Joker gave a sinister grin. "I'm sure Batman won't mind cleaning up our mess."

"Where have you been all my life?" The Joker sounded impressed while following her. However, the only one not impressed was Harley. She was seething with rage over how the Joker could be so infatuated with Kryptonite Supergirl. Harley wanted to be Joker's only object of affection...and she wasn't going to let some mind controlled princess steal her spotlight.


The first place Barry and Mon-El went was the warehouse Joker and Harley originally held him and Clark. Barry figured Joker would have left a vial with the serum he initially mixed with the red kryptonite, and he knew his skills as a forensic scientist were going to come in handy here. But if there was one thing Barry needed, it was for Mon-El to stop pacing around the warehouse. Who knew what the Joker had done to the place while Barry and Clark were away.

"All right, we're looking for a small syringe that might have a foreign substance," Barry instructed as he and Mon-El looked around. "Keep your eyes peeled and don't touch anything."

"Why can't I touch anything?" Mon-El questioned as Barry turned around with a raised eyebrow.

"Because I said so," Barry responded. "But you're not my mother or father, so...I don't think I should listen to you. Besides, you tried to kill me back at the DEO." Mon-El continued testing Barry's patience.

"Listen to me very closely, Mon-Dork. Joker and Harley Quinn could have booby trapped anything in this warehouse. If you touch anything but the syringe, we could be in trouble. We can actually die. So please, listen to me and just look for the syringe." Barry turned around and started looking for the syringe, but he heard Mon-El chuckle behind him. "What is so funny, Mon-El?"

"You...you said 'booby'." Mon-El tried not to laugh, but Barry glared at Mon-El in return.

"Do me a favor," Barry angrily said. "Just look around. It's not that hard to do." Barry turned and went back to looking for the syringe, which gave Mon-El indication that he should look around too. Mon-El started looking around the warehouse away from Barry, but as he continued looking, he realized there was something on the table which intrigued him. It was a red button with the word 'PUSH' on it.

"Oh, what does this do?" Mon-El questioned to himself as he walked towards the table. He pressed the red button that was on the table, but once he did so, he heard rumbling from the floor. Just a few feet away, Barry felt the ground shaking, and it took him a moment to process that Mon-El had something to do with it.

"Mon-El! Did you touch something?!" Barry snapped while Mon-El stared meekly at the red button.

"No…?" Mon-El lied, although his response came out as a question.

"Barry, you have to get out of there!" Cisco said from the radio attached to Barry's super suit. "Mon-El accidentally triggered a self-destruct mechanism on the warehouse."

"In English, please?" Barry panicked.

"The building is going to explode," Cisco replied. Barry grabbed Mon-El as they ran out of the warehouse and onto the hill overlooking the area. Barry took a deep breath as he watched the abandoned warehouse engulf into flames. He appeared as if he was in disbelief, but he was more upset that Mon-El was standing right next to him, almost watching the exploding building in awe.

"You know on my planet, they consider exploding buildings 'entertainment'." Mon-El simply said. Barry clenched his fists in anger, but he was interrupted when he heard Cisco's voice from his suit.

"Barry, did you and Mon-El get out of there?" Cisco questioned.

"Unfortunately," Barry said. "Cisco, I was this close to finding the syringe! But of course, it had to be Mon-El to touch something."

"This is a new planet and I was just curious." Mon-El meekly replied.

"Well, you chose a wonderful time to be curious." Barry sardonically seethed.

"See, you get my point." Mon-El glided over Barry's sarcasm.

"Mon-El, do you not realize what you just did?" Barry asked. "Because the warehouse blew up, we are never going to find the syringe."

"I'm sure it's still in the rubble somewhere." Mon-El tried to reason.

"Do you not realize the seriousness of what you've done?!" Barry yelled. "No! Because everything is a joke to you! Let me tell you something, Mon-El, you're not on Daxam anymore! You're on Earth! So do me a favor and grow up!" Mon-El appeared as if he was stunned by Barry's words. However, before he had a chance to retort, Barry heard static come from his earpiece. "What's going on?"

"We have a problem," Cisco said. "There's been a huge breach at Blackgate Penitentiary."

"How big are we talking?" Barry pondered as Mon-El glanced with interest.

"Well, let's just say all of the villains that were currently incarcerated have been released. And guess who is behind it?" Cisco winced at the end of his question.

"Let me guess? Joker?" Barry shuddered.

"Exactly," Cisco replied while Barry turned to Mon-El with a reluctant glance.

"Let's go to Gotham City," Barry said. "Joker's about to start a revolution."

"Oh, can we stop for donuts along the way?" Mon-El perked up.

"No, we can't," Barry answered, although truthfully he could have gone for some donuts right now. "Come on, let's go." Mon-El nodded his head as Barry zoomed towards Gotham City, hoping that they could save Kara before it was too late.


Barry and Mon-El made their way to Gotham City in record time, especially since they heard Joker-along with Kara-was going to be here. Barry hoped that no one was hurting Kara, even if she was under mind control. And without the syringe to make the antidote, Barry was going to have to think of a new plan.

"Well, if it isn't the Scarlet Speedster." Joker guffawed as Barry zoomed in front of him and Harley. "I'm actually very glad you came. It's not a party without you…"

"Listen to me, you need to put all of these criminals back in Blackgate." Barry reasoned. "If you can comply, I can work out a good deal for you. It's not too late to do the right thing, Joker."

"You fool!" Kara laughed as she walked forward, glancing at Barry with a devilish grin. "You're getting in Joker's way?"

"Yeah, what she said." Harley pointed at Kara.

"Kara, this isn't you." Barry sighed as he gave her a helpless glance. "Joker did something to you, and now you think you're evil. Come with me back to the DEO and we can figure out a way to help you."

"Why would I want your help?" Kara gave a fake pout while slowly walking towards Barry. "I have never felt more alive…"

"Helping Joker break people out of prison is your idea of feeling alive?" Barry scoffed. "Kara, we have to get the Red Kryptonite out of your system. It's causing you to act out like this. And I know exactly who you are. You...working with Joker...isn't you."

"Oh shut up, she doesn't want to hear your lies!" Harley cackled as Barry furrowed his eyebrows at her. "Just remember, we know something about you that no one else knows. You wouldn't want you or Supergirl being run out of town, now would ya."

"Is that why you have Winn doing whatever you want? Cause he's protecting Supergirl's secret?" Barry furrowed his eyebrows.

"Pretty much. I just love that he's one of those 'ride or die' friends." Harley nonchalantly shrugged her shoulders.

"Wait, where is Winn anyway?" Barry furrowed his eyebrows.

"He's busy concocting something special that will help us rule the world." Joker cackled. "In fact, he should be here any minute." Barry noticed someone pushing through the crowd of villains and saw Winn appearing with a syringe. "Ah, here he is now."

"Winn, what are you doing?" Barry said just above a whisper.

"I'm sorry," Winn appeared saddened as he glanced at Barry. "I have to protect Kara's secret. I can't have anyone knowing who she is."

"Don't you see that in you trying to help her, you're actually hurting her?" Barry motioned towards Kara in her Red Kryptonite state. "This isn't Kara…, and I'm sure if Kara was upright, she wouldn't want you doing anything like this."

"Okay, and if the world finds out who she really is, they're not going to hesitate running her out of town!" Winn retorted. "I can't lose my best friend!"

"Winn, you lost your best friend the moment Joker and Harley injected her with Red Kryptonite." Barry reasoned. "The real Kara would understand if you didn't want to help Joker and Harley. Please...don't do this..."

"Enough chit-chat," Joker growled as Winn stood quietly. "Bring the syringe to me."

"What are you going to do to Kara now?" Barry felt his heart drop as he felt helpless.

"Oh my dear boy," Joker slowly walked towards Barry with a sinister grin. "This isn't for Kara. This is for you." Before Barry had a chance to respond, Kara grabbed him and used her strength to hold him down, causing the Scarlet Speedster to squirm helplessly.

"Kara! Let me go!" Barry shouted, with Kara giving Joker a sinister look. "Kara, don't do this! Kara…, Kara." Barry continued to plead as the Joker walked closer, eventually taking the syringe and plunging it towards Barry's neck. "KARA!"

The Joker stuck the syringe in Barry's neck as he let out a scream, eventually slumping to the floor almost as if he was in a comatose state. Winn bit his lower lip as Barry stayed on the floor, his eyes eventually going towards Joker with worry.

"With this syringe, we'll have both Supergirl and The Flash on our side," Joker said as Winn glanced at Red Kryptonite Kara. "And if The Flash doesn't comply, Supergirl can take him out once and for all. I'd love to see what Batman and Superman have to say about that." Joker continued staring at Barry who kept his eyes closed. Far away from the scene, Mon-El hid behind one of the buildings as he watched the scene unfold before him. Saving Barry was too far gone…, and he knew he couldn't take on all of those villains at once. He had to get help in order to save Kara, Barry, and Winn.

He just hoped that he would be taken seriously in his effort to prove his worth.