Chapter 1: Kidnapped

Disclaimer: I do not own Batman or Black Lagoon.

A/N: I'm gonna be upfront, there's a HUGE possibility that this story won't get finished. Or at least will have long updates in between chapters. Either way, don't hold your breath waiting for an update.

Also, for you Batman: Arkham Knight fans (Or Batman fans in gerneral), the Arkham Knight is NOT Jason Todd. I've chosen someone more suitable, and not as freaking obvious to be the metal suited villain.

Character: Robin
Location: Gotham, Bleake Island
Setting: Night (As always)
Weather: Cloudy
Time: 8:34 PM est

Looking down at the G.C.P.D Police Station atop the Gotham Herald building located between the Cauldron, and Chinatown Districts sat Robin, A.K.A Tim Drake. The third Boy Wonder had just finished bringing Calendar Man, A.K.A Julian Gregory Day there himself. With Halloween only one night away, Tim knew the infamous holiday themed villain would try something. So instead of waiting around for Julian to murder somebody, Robin went on the hunt. However, it wasn't easy. Since the death of the Joker in Arkham City a year ago, crime in Gotham went down at an alarming rate. Thus meaning there weren't as many thugs on the street to interrogate, and most of them didn't know where Calendar Man was hiding since he's not a high profile villain. It took a whole week and a half before Tim finally got information from a crook. Apparently, Julian's hideout was underneath Ryker Heights in the old desolate part of Founders's Island. With surprise as a tactical advantage, Robin easily took down the calendar obsessed villain. Also, not wanting to risk the chance of Mr. Day escaping into the night, Tim had a squad car called and followed it all the way to G.C.P.D.

With one less villain off the streets of Gotham, Robin decided to report in on Batman. Raising his right gauntlet just in front of him, he tapped it to let a holographic screen appear with nothing on it except the word connecting on the top left.

"Robin? How goes your hunt for Calendar Man?" Batman asked as soon as his face popped up on screen.

"It went great. The 11th thug I shook down told me exactly were Julian was, and now both of them are behind bars in G.C.P.D, waiting to get transferred to Blackgate" Robin informed his mentor.

"Great work. Any information on the whereabouts of Harley Quinn, Penguin, Riddler, and Two-Face?" Batman also asked.

"Nope. Every crook and thug I questioned had no idea where they were hiding. So either they're lying, or all four of Gotham's greatest villains have left home" Tim answered the caped crusader.

"Hmm...that's not good. If they all aren't in Gotham, then where on Earth could they be?" Batman inquired himself.

"Could it be connected to the militia force? You know, the same one that broke into an Iron Heights prison airship and let Killer Croc loose?" Drake suspected.

"That also let Croc mutilate, and cannibalize the correction officers? Possibly, but I don't see how or why four villains based in Gotham would suddenly join up with a militia force" Batman replied sternly.

"Well, the bright side is that Gotham's four remaining top villains aren't here to cause any chaos" Robin said, trying to lighten the mood.

"True, but the fact that four villains from my Rouges Gallery possibly left Gotham, when they have a vendetta against me doesn't bode well" the Dark Knight told Boy Wonder.

Robin stayed silent for a bit before replying "Yeah, it doesn't bode well. But where could they have gone? It's not like they would pack up and start terrorizing another town, right?"

"No, they wouldn't. Which is exactly why this is strange. Harley Quinn wants me dead because she thinks I killed Joker. Penguin wants me dead because I've kept interfering with his illegal operations for years. Ridder wants to outsmart me, and show the world how he outwitted the Batman...before he finally kills me after mind numbing gloating of course"

Tim couldn't help but let a small smile form on his face. It wasn't too often you get to hear the static faced Batman complain about a villain.

"Then Two-Face wants me dead because he blames me for the mob dumping acid on half his face" Batman finished.

"Four different bad guys that have different reasons to kill you" Robin sighed after saying this. "Look Bruce: Harley, Penguin, Riddler, and Two-Face are gone. Crime in Gotham is at an all time low. I say we keep protecting the city, and prepare for whatever they're planning"

The Caped Crusader hated to admit it, but Tim was right. With no information from Selina, no leads to track them down, and the scum of Gotham not knowing anything, it seemed as though four criminally insane villains have dropped off the grid.

"Fine, but prepare for anything. You never know when they'll strike" Batman cautioned his pupil.

"It'll be okay Bruce. I honestly think things have turned for the better around here" Tim said, trying to ease the Dark Knight's worries.

"I hope so" the black clad vigilante replied before disconnecting from Robin.

The holographic screen emitting from Robin's gauntlet disappeared, so he got up from his crouching position to let some blood flow back in his legs. Batman, his mentor, his role model, always worked so hard to make sure Gotham could turn over a new leaf. After so many years of violence, trauma, corruption, death, and psychotic villains; it finally happened, a relatively safe Gotham. The only crimes going on were petty thefts, just like in any other city.

Tim looked over to his right and saw the Clock Tower, the base of Oracle, A.K.A Barbara Gordon. With Gotham more safe than it has been in...well, for the first time ever, maybe they could hang out as friends sometime. (Note: I do not approve of the Tim Drake ship with Oracle)

Just when Robin was about to grapnel over to the Clock Tower, something stuck him in the front right of his neck. Tim quickly grabbed the foreign object out of his neck to see himself holding a ballistic syringe.

"What the...?" Tim trailed off before falling backwards on the Gotham Herald roof and passing out.

Unbeknownst to the Boy Wonder, a metallic figure had been watching him from atop Osamu Tower in Chinatown. They were still in a sniping position, holding an air rifle when the red clad sidekick went down. After waiting 10 seconds to see if Batman's trusty ward would regain consciousness, the figure stood up. The mysterious sniper wore a militaristic version of Batman's suit. A tactical visor covering their face where Batman's Cowl would've been located. Then lastly, an Arkham Asylum symbol was placed on the suit's chest plates.

Using their left hand to hold the air rifle, the Batman mocking figure raised their right hand to where their ear would've been if not for the visor being in the way.

"Commander, prep a containment cell. I'm coming back with Robin" the robotic sounding sniper ordered.

"Yes sir!" the Commander replied with military respectfulness.

The supposed leader of some kind of military group dropped their right hand to the side. Before taking Robin to an undisclosed location, they looked over to Panessa Studios. Where the Dark Knight himself was currently located.

"I hope you're ready for a little trip Bruce, because the Arkham Knight sure is"

Character: Catwoman
Location: Gotham, Miagani Island, Pinkney Orphanage
Setting: Night
Weather: Cloudy
Time: 9:27 PM est

For the first time in a long time it wasn't raining in Gotham. Which was fortunate for Eddie Nashton, A.K.A Edward Nigma, A.K.A Enigma, A.K.A the Riddler, because Selina would've charged extra for making her come here in the rain.

Riddler's phone call to Ms. Kyle took her by surprise. Ever since Arkham City shutdown, she hasn't seen hide, nor hair of any villains. Not even the lesser known ones. So not wanting to miss this opportunity, Catwoman got information out of him during their conversation. Enigma went on to tell her about how Scarecrow resurfaced and got Harley Quinn, Penguin, Two-Face, and himself to form an alliance to defeat Batman. Selina could hardly believe it, Scarecrow getting the four of them together to beat Batman? It seemed nigh impossible for those four to get along, especially Penguin and Two-Face. Although, they all have been in hiding for almost a year, which is odd for them not to come out and commit a crime of some sort, so it could be true. Then, to bait Selina into doing a job for him, Riddler revealed that a new villain came out of the woodwork to help the group of five. But he would only tell her more if she came to Pinkney Orphanage. For the use of her quote unquote street smarts. A clever move on his part, Selina had to admit.

Walking up the path to Pinkney Orphanage, Selina couldn't help but let her mind flash back to when she was an orphan in this godforsaken place. During her time there, Selina found out the orphanage administrator had been embezzling funds for her own selfish gain. When confronting her about it, the administrator trapped a young Selina Kyle in a burlap sack, and threw her over the nearby cliffside into Gotham Bay. She survived of course, and not taking too kindly to being nearly drowned, Selina stole the documents which linked her former administrator to the embezzlment. With evidence in hand, the future Catwoman blackmailed the administrator into erasing all information pertaining to Selina Kyle from Gotham City's records. With that whole ordeal out of the way, Selina walked out of Pinkney Orphanage to start her new life...with the administrator's freshly stolen diamond necklace.

After her trip down memory lane, Catwoman marched up the stairs of Pinkney Orphanage. The brown double doors leading inside looked like they haven't been affected from years of disrepair like other parts of the building. When grabbing the left doorknob to go inside, Selina noticed words written in green paint on the right door. It read "Can you defeat a mind such as mine?"

"Ah Eddie, still the same old megalomaniac I see" Ms. Kyle thought to herself before opening the left door.

Upon entering, Selina saw an old and forgotten carpet lead down a short hallway to the main lobby. Toys, drawings, and trash were spread all over the floor. While the walls had vines creeping along it. As if they were trying to hide the peeling wallpaper underneath.

When she finished her stroll through the hallway, Catwoman observed her surroundings. The lobby had two blue linestra light bulbs glowing on the left side, along with the front desk being present. To the right were two light bulbs sticking out of a light fixture attached to the wall, emitting green light, no doubt Riddler's doing. Then below the green light bulbs was a table with...a robot on it?

Confusion formed on Selina's face as she walked to the odd sight. Sure enough, there was a Wonder Land type robot laying on the table. It had a hockey mask covering it's face, a question mark on it's right chest plate, and a glass sphere where it's lower torso should be.

"Well I'll be damned, Eddie made himself a little robot friend" Selina joked to herself aloud.

"Oh, it's more than just a companion" a modulated voice suddenly said from behind Catwoman.

Ms. Kyle quickly turned around in a fighting stance, ready to face whoever snuck up behind her.

"Whoa whoa whoa, I'm not here to hurt you Ms. Kyle. I'm the new villain Riddler told you about, the Arkham Knight" Gotham's newest villain introduced.

Selina sightly let her guard down and asked "You are?". The cat themed prowler eyed the Gotham newbie up and down. "Let me guess, judging by your name, and that symbol on your chest; you have ties to Arkham Asylum, hate Batman, and teamed up with Gotham's villains as a sure fire way to beat him, right?" Catwoman conjectured.

The metallic villain laughed. "I don't have ties to Arkham Asylum. I chose this name and symbol because I know of Batman's long history with it. Plus, Bruce never had any reason to throw me in there" Arkham Knight answered swiftly.

Alarm bell instantly started ringing in Selina's head "You...you know who Batman is? How? And where's Eddie? He's the one that called me here"

"Batman and I have history together, with and without the Batsuit on. Then Riddler, along with Gotham's other villains are in Roanapur. It's a small town just south of Thailand. And before you ask, they're currently placed there because we're planning something, something huge. It'll involve the downfall of Batman, and one of the most corrupted towns in the world" Arkham Knight responded.

"That doesn't make any sense. If you're planning to kill Batman with his villains, then why take them away from Gotham?" Catwoman pressed further.

"Simple, to take him out of his comfort zone. Batman knows Gotham like the back of his hand, every street name, alleyway, sewer tunnel, all of it. Plus, he has too many secondary bases located throughout Gotham, like the one in Panessa Studios, or up in Wayne Tower. Not to mention his little secret garages where he can obtain upgrades for the Batmobile" the Batman copier replied.

"Okay, but what does that have to do with me? Why did Eddie call me here?" Selina finally asked a question she should've asked first and foremost.

"Bait for Batman" Arkham Knight told Ms. Kyle with malice in his voice.

Already knowing she couldn't take on a high tech armored enemy, Selina was going to cartwheel past the Knight, and run out the door. But before she could put her plan into action, the Arkham Knight pulled out a handgun, and shot Catwoman in her left thigh.

Selina grunted in pain as she kneeled on her right leg. Thankfully, the bullet went straight through her thigh, and due to this being Gotham, Selina was use to the occasional gunshot wound.

"Now then, why don't you be a good little kitty and go to sleep?" Arkham Knight stated before punching Catwoman hard across her face, thus knocking her out on the floor.

Now with Selina out cold, the Arkham Knight raised his right hand to where his ear would be.

"Commander, prepare another containment cell. I'm bringing Catwoman in". The Arkham Knight looked at Selina's bleeding thigh "And make sure to give first-aid. Someone shot her".

Character: Nightwing
Location: Blüdhaven Police Department
Setting: Night
Weather: Cloudy
Time: 10:03 PM est

"A break in at the Blüdhaven Police Department led someone who looks like Batman? Must be a new copycat" Nightwing mused to himself as he entered an air vent on the B.P.D's roof.

Nightwing, A.K.A Dick Grayson had been doing his nightly patrol of Blüdhaven when his comm-link picked up a distress signal. Apparently, a Militia group and their armored up leader resembling Batman broke into the B.P.D. Police officers reported that the militia came in through every above ground entrance, and demanded to know where the recently captured Poison Ivy, A.K.A Pamela Isley, was being kept. With a new enemy leading a Militia force looking for Poison Ivy, one would think Nightwing would call Batman or someone else for help, right? Nope, the over confident vigilante didn't call for any support. Instead, he went straight into the line of fire.

After crawling through the ventilation system for awhile, Nightwing began to hear voices. One was Poison Ivy, and the other was some sort of modulated voice. Eventually, Dick got to a vent cover and peered down. He could see Poison Ivy in her cell, and a metal suited man standing on the other side.

"Who are you supposed to be? The living manifestation of Arkham Asylum?" Poison Ivy asked.

"As of matter of fact I am. The names Arkham Knight, and I was hoping to gain your assistance in ridding the world of Batman, and a certain town just south of Thailand" Arkham Knight explained to Poison Ivy.

"No, I refuse to be involved in any of your human games. Plus, if Batman ends up winning, which he will, I'll be trapped on the other side of the planet" Pamela responded.

"It's natural to see a negative outcome when going against Batman. But I'm not going to force you to come along with us, instead, I only ask for one favor" the Knight bargained.

"Hmm? And what would that be?" Ms. Isley asked in slight curiosity.

"I'll give you the details after I deal with an uninvited guest" Arkham Knight stated before pulling out his handgun and shooting the overhead vent.

The Arkham Knight didn't directly shoot the vent, instead he shot the hinges holding it up. With no more support to keep it steady, the vent bent downwards, making Nightwing come tumbling out.

"Well well well, if it isn't Nightwing; the original Robin" Arkham Knight addressed the former Boy Wonder.

Dick quickly got his bearings together to face the new threat. "And if it isn't the Arkham Knight" Nightwing addressed back.

"You know, I was going to capture you after I broke Ivy out of here. But since you came to me instead-" the Arkham Knight cut himself off to snap his fingers.

Before Nightwing knew it, he was surrounded by nine militia soldiers. Eight of the nine were basic soldiers with assault rifles, while the other one was a large muscular mini-gunner.

"It seems you may have bitten off than you can chew, Batnite" the Militia leader mocked.

"It's Nightwing" Grayson corrected in slight irritation.

"I know, I know. With you living in Batman's shadow for all this time, it's hard not to visualize you as nothing more than a sidekick" the Knight teased harshly.

Dick would never admit, but he hated being called less than Batman. It was the whole reason he moved to Blüdhaven; to get out of Batman's shadow, and become his own hero who didn't need a mentor anymore.

"Alright, I get it. You know I used to be the original Robin, some people do. But I want this question answered, who are you?" Nightwing asked, trying to hide his anger.

"Someone who isn't Batman's bottom bitch" the Arkham Knight derided.

Nightwing's patience wore out. With rage clouding his mind, Dick threw his left escrima stick at a regular soldier to his front left. It rebounded off the mercenaries' face mask; making him fall backwards in surprise. When the escrima stick returned to Nightwing, he dropped a smoke pellet covering the whole room in a smokey gray haze.

"Damn it! I can't see him!" one soldier cried out.

"Shut up! Whining about it isn't helping anyone" the mini-gunner commented.

With his enemies blind and confused, Dick took this opportunity to take down the mini-gunner. Running at full speed towards the big brute, Nightwing jumped up and jammed both of his escrima stick in the sides of his neck.

"YYYYYAAAAARRRRGGGGHHHH!" the mini-gunner shouted in shocking pain.

The biggest militia soldier fell backwards with a heavy thud, leaving Dick standing on his unconscious body. When Nightwing turned around to attack the other militia soldiers, the Arkham Knight quickly sprinted up to him, and performed a powerful Taekwondo front push kick. The attack landed on Nightwing's stomach, sending him off the mini-gunner, and down on the ground.

"You're not the only one who can see through smoke" Arkham Knight told Nightwing.

Before Dick could even attempt to jump back on his feet, the Arkham Knight placed his right foot on top of the young vigilante's chest. In an endeavor to get the Arkham Knight off him, Nightwing stuck one of his escrima sticks in the Knight's leg.

"Ha! You actually thought this suit wasn't electric proof? Not to mention the fact that you're still cocky after all these years. Heh, and here I thought Bruce taught you better"

Grunting under the pressure of Arkham Knight's heel, Nightwing huffed "Who...are...you?"

"An old friend" the Knight responded.

With nothing more to say, the Arkham Knight dropped his right knee on Nightwing's forehead, causing a successful knock out.

"Finally, circus boy went to sleep". The smoke from Nightwing's smoke pellet started dissipating, making everything visible again. "Alright, I want Nightwing taken back to the helicopter, and someone call a medic for our mini-gunner" the Arkham Knight commanded.

"Yes sir!" Arkham Knight's guerrilla team shouted back.

Two soldiers carried Nightwing out of the room, while five stood guard for any police officers who dared to come in, and one ran off to get a medic.

"Now" Arkham Knight began as he turned back to Poison Ivy. "About that favor"

"Yes, my favor to you. What is it exactly?" Isley questioned.

"I know how you created an antidote for the Titan formula during Joker's takeover of Akham Asylum. So I was wondering...could you possibly make a cure for Venom?" the metal suited man asked.

"The same Venom used by Bane when first showed up in Gotham?" Pamela inquired.

"Yes, but not a permanent cure where someone would turn back to normal. Make it so that a person who took Venom in the past still has their strength, yet doesn't need to keep taking Venom over and over again to sustain their muscle mass" the Knight explained.

"...I might be able to create a cure to those precise specifications" Poison Ivy answered.

"Good"

Character: Balalaika
Location: Roanapur, Hotel Moscow HQ
Setting: Late Morning
Weather: Partly Cloudy
Time: 11:15 AM ICT

Late morning sunlight shown through the windows of Balalaika's office. Her wooden desk standing like a judge's bench, where she casts down judgement upon those who have crossed Hotel Moscow. Currently, the Russian Mafia boss had pictures sprawled across her usually clear desk. While she wore her usual business suit, and Greatcoat. These pictures were taken by various members of Hotel Moscow at locations all over Roanapur. The blonde woman isolated herself for the past five minutes to examine said images. In them were soldiers grouped in either threes, fours, or fives; while in other pictures, soldiers rode in armored jeeps or APCs. The strangest part of these soldiers were their symbol, a white upper case A.

Balalaika knew something wasn't right here. These soldiers came into town earlier this morning, and have been hanging around Roanapur like they were preparing for a hostile take over. With rising suspicions, Balalaika sent a unit (group) to question the outsiders.

knock knock knock

"Come in" Balalaika told whoever was at her door.

With permission granted, the blonde's guest let himself in. It was Boris, wearing his usual suit and holding a file folder in his left hand.

"Kapitain, I found documents related to those soldier's symbol" the sargent told his superior.

"Bring them here" Balalaika ordered.

Boris walked towards his bosses desk with a troubled look on his face.

"What's wrong? Surely that symbol can't be that big of a deal" the blonde commented.

"No, but the city that the symbol traces back to, it's...not good" Boris replied, placing the folder on Balalaika'a desk.

"Ha. There's no city on Earth as bad as Roanapur" the Russian joked, opening the folder. "Let's see here...Arkham Asylum, location...Gotham City"

Silence fell upon the room for about 5 seconds before Balalaika muttered, "Shit"

"Of all the places these...Arkham Soldiers could link back to, it just HAD to be Gotham City" the Hotel Moscow leader pinched the bridge between her eyes.

"Are you thinking what I'm thinking?" Boris asked.

"That Batman could possibly show up here? Yes" the blonde admitted. "Although, the fact that soldiers have the same symbol as an asylum all the way in America doesn't make any sense. Why would someone want to represent an asylum, and come all the way across the globe to attack Roanapur of all places? It doesn't make any sense. Especially when these documents say Arkham Asylum's been closed for almost 2 years" Balalaika pondered aloud.

"Perhaps a personal grudge?" the Sargent assumed.

"Maybe...ugh!" Balalaika grunted, slamming her fists on her desk. "None of this makes any sense!"

After her exclamation, Balalaika leaned back in her chair, staring at the ceiling in deep thought. A whole entire army had come into her city, and she couldn't trace their origins. Were they just passing through? Or planning to take over Roanapur? The outsiders would obviously loose if push came to shove. With the combined strength of Hotel Moscow, the Hong Kong Triad, the Colombian Cartel, and the Church of Violence, anybody who dared to take over the city wouldn't leave...at least not alive.

Suddenly, Balalaika's cell phone started ringing in her Greatcoat, snapping the Russian out of her thoughts. She promptly pulled it out, answering it. "Hello?"

"Kapitain, it's Corporal Menshov" the soldier told his superior.

"Ah, Corporal. Do you have any information on those soldiers?" the Russian woman inquired.

"I do. Apparently these soldiers are a Militia force originating from Venezuela. They claim to be only passing through Roanapur. Also, their leader is someone dubbed, "The Arkham Knight"" Menshov revealed.

"Hmmmm...Arkham Knight...Venezuela. Why do I feel like someone we know lives there..." Balalaika trailed off, combing her mind for an answer...then it hit her. "Oh God"

"Something wrong?" the Corporal asked politely.

"Venezuela...that maid lives there" Balalaika stated.

"Wait, are you implying that Roberta led an army all the way to Roanapur?" Menshov calmly questioned.

"I would, if it weren't for their leader naming themselves "The Arkham Knight", and having their soldiers wear an A that's exactly like the one in Arkham Asylum. Which is located in Gotham City" the Mafia leader commented.

"Isn't that where Batman is located?" Menshov added.

"Yes, which makes this situation all the more confusing...and dangerous" Balalaika said, leaning back in her chair again.

"Well then, I think this situation is in fact, more dangerous than before" the Corporal divulged.

"What is it?" the blonde inquired with authority.

"I'm pretty sure the unit and I saw a group of Batman's villains walking down the street earlier"

"What!?" Balalaika yelled, gripping her phone a bit more tightly. "Maybe you were mistaken. Describe them to me!"

"The one that stood out the most was a man wearing a white dress suit. But it looked like someone burnt half of his body, including the suit. Second was a man wearing green goggles, and a green button up shirt with question marks all over it. I even think the cane he was carrying around was a question mark too. Third, a short, bald, and hefty fellow wearing a monocle. His nose seemed to be unusually pointy as well. Lastly, a clown woman with blonde hair in the shape of twin pigtails. She carried around a white baseball bat with swirling red stripes" Menshov described.

"That's enough" Balalaika halted.

The woman had profiles of each person Colonial Menshov described lined up on her desk from left to right. Two-Face, A.K.A Harvey Dent, Riddler, A.K.A Edward Nigma, Penguin, A.K.A Oswald Cobblepot, and Harley Quinn, A.K.A Harleen Quinzel. Four of Batman's most notorious villains, here in Roanapur. Along with an Militia force created in Venezuela, and lead by the Arkham Knight.

"Corporal, did you send someone to spy on those four?" Sofiya (Balalaika'a real name) debriefed.

"Of course. Their appearances alone were suspicious enough" Corporal Menshov answered.

"Good, because I have a feeling we're going to war"

A/N: Some of you Black Lagoon fans might've noticed that Corporal Menshov is alive. Even though he died at the hands of Hänsel and Gretel in the anime. Well, something about his appearance in Roberta's first story arc clicked to me. So instead of having him die, he only got tortured by Hänsel and Gretel in this story's canon.