Author's Note: This is where the plot begins to take off! There will be some partial AU elements, but I'm not going to tell you what because it will spoil. I will be pulling in ideas from the Big Hero 6 comics and manga. Also, for future reference, keep in mind that the movie was told from Hiro's perspective, and that he might not know everything ;)

Hiro's hands trembled and his heart pounded in his chest. Who is this? How did they find me? Whoever they were, they knew about the fire. They wanted Hiro to meet them where he lost his brother. Hiro's hands trembled more from fury than nerves now. They were going to pay.

A sound came from the corner of the room, sounding like a gust of air. A robotic voice followed. "Hello, I am Baymax, your personal health-care companion. My scanners detected a sharp increase of heart rate. Your current brain activity indicates fear and anger. It is recommended that you discuss your feelings to prevent yourself from doing something you might regret."

Ah, yes. Hiro's robotic nurse, Baymax, was invented by Tadashi to take care of people when they might not have access to a doctor. Hiro was forced to rebuild him after the original version was trapped in a portal during Big Hero 6's first mission (thankfully his brother, ever prepared, made multiple copies of all of his notes, and Hiro had all of the original coding on a chip). The newest model only had a few differences, like a better scanner, an additional list of stimuli that prompted him to turn on, a better battery, and karate skills. Despite the differences, it still had the heart of the first.

Hiro decided to listen to the robot a little bit and took a deep breath. After letting it out, he turned to Baymax. "Someone wants to meet up with me at the scene of the fire." Hiro held up the note for Baymax to see.

Baymax looked at it. "Going out to meet someone that late would mean lack of sleep and a deficient amount of brain attentiveness the next day."

Hiro rolled his eyes. "The point is, they know about how Tadashi died, they're throwing it in my face, and they're probably threatening me. You need to suit up."

Baymax paused to process this. "If you believe the writer to be threatening you, why do you wish to meet them?"

Sighing, Hiro grabbed Baymax's hand, preparing to help the robot sneak down the steps. "They've already been inside my house, they know where to find me if I don't go. So I'd rather get this over with now."

It was a partial lie. Hiro also wanted, no, needed to know if they were in any way connected to Tadashi (not likely, but he was not going to rule out the possibility until it was proven wrong). He was also curious. It killed Hiro when he didn't know something that someone else did.

That being said, it was probably a trap.

Once both Hiro and Baymax were suited up, Hiro shared his idea. "They're probably going to grab us, I guess. I don't know what they want. Whatever this is, it's a trap."

"I suggest that we exercise caution when dealing with dangerous individuals."

"Yeah, no kidding. Baymax, call Wasabi."

A screen with Wasabi's face appeared on top of Baymax's red suit. After a few dialing noises, a voice said, "Hey."

"Wasabi," Hiro said urgently. "I need a plan. I got a note saying to 'go where the fire happened' at one." Wasabi, the precision-oriented genius, was the go-to guy for strategy.

"Oh, you too?"

Hiro stared at the screen. Was this person contacting the whole team? "Yeah, have you heard from the others?"

"Nah, but we better ask them now. You're not seriously thinking of going, are you?"

Hiro stole a quick glance at his assembled suit. "Um, yeah. Why not?"

He could hear Wasabi sigh. "We call the police. They go there and catch this creep. If we go, we'll just be doing what they want us to."

"Whoever this… they," Hiro paused, trying how to explain but still sound rational. "They know about the fire and they want us to meet them there. How do we know that they didn't have something to do with…"

Wasabi sighed again. "Hiro," he said slowly. "We already caught that guy. This person just knows enough about you, about all of us, to know our pressure point. We need to be careful."

Hiro knew he was right, but he didn't want to give up that easily. "What if the police can't handle it? What if it's a super villain? I mean, they contacted our group. They're probably prepared to take us, so any cops wouldn't last a second."

Cue sigh number three. "Fine. Let me contact the others first."

"Great, tell everyone to come here ready, just in case."

Once everyone was in the garage, they confirmed that the sender had been to each of their homes. How they knew who they were, Hiro did not know. He thought that they did an okay job at covering their tracks. After defeating Callaghan and getting into more hero work, Fred suggested that the 'secret identity' was an acceptable cliché. Gogo agreed, and offered to design some spectacular one-way tinted helmets to keep their faces from being seen, including Baymax's. That, along with the bullet-proof vests Wasabi suggested and the fire-proof material Honey Lemon found, made their attire virtually indestructible.

But still, no one was fully confident when it came to avoiding the trap while also catching the sender. The clock on the wall said 12:05. They were running out of time.

"Guys, let's just go," said Hiro, trying his best to keep quiet and not wake up Aunt Cass. "We don't wanna find out what they'll do if we make them mad, especially since they know where we live."

Honey Lemon gave him the look, the one that simultaneously said you are a precious baby and you're wrong, but I understand. Hiro wasn't sure which part of that was worse. "Hiro, if they know who we are, they know what we can do, and will be expecting us to come prepared to fight. So they will know how to fight back."

Baymax spoke up. "Honey is right. Hiro, a scan of your brain shows lack of activity in the frontal lobe, indicating that you are likely thinking recklessly without considering the consequences. This is common for pubescent – "

Just as Hiro was preparing to interrupt him, the robot grew stiff (well, stiffer than usual). Suddenly standing like a soldier, Baymax changed tones to something that did not sound like it belonged to him at all. "Reckless thinking will get you into trouble one day, Hiro Hamada."

Hiro glanced around the room, everyone had their helmets off, and Hiro could clearly see their anxiety. Honey spoke up first, her voice possessing a barely detectable tremor. "Who is this?"

"A friend," the non-friendly tone continued. "We have been watching your group for a while now, and would love the pleasure of meeting you."

Something wasn't adding up. They weren't even at SFIT right now! "Guess you got impatient and decided to talk here." Hiro scanned the room, searching for cameras, since they were probably watching them right now.

"Actually, we were relying on your impatience."

"Oh really," suddenly Hiro felt a little faint. Was he really that tired? "And…why is…that?"

The room swirled and spiraled around Hiro. The bright colors and lights blurred together in a twister, in a hole that Hiro felt himself falling into. Wait, no! Hiro thought. Am I passing out?

Just as blackness folded around Hiro, he heard a robotic voice say, "It makes collection more efficient."

Knock out gas, Hiro's brain supplied as he succumbed to the darkness.

...

Hiro groggily came back to awareness, noticing a stinging in his neck. He opened his eyes.

He was in a small room full of chairs that he and his friends were sitting in. The room was dim, with light coming from a fixture from the ceiling and reflecting in the window in front of them. The window showed a room with two people wearing suits – a man and a woman. Hiro looked around. His friends were slowly regaining consciousness; they must have been knocked out too.

"Good morning," the suited woman said through the window, with a voice that immediately told Hiro not to mess with her. She seemed amused at how groggy they were.

"Who are you?" Gogo demanded. Hiro wished he could sound as threatening when he first woke up. Wait, he wondered, is it really morning? Aunt Cass was going to freak out.

"We are G.I.R.I." the woman explained. "We are the keepers of peace. We find destruction and we stop it." She gazed at them, assessing them like a collection of insects.

"Good news, so are we." Honey Lemon retorted. She stood up. Hiro then realized that he wasn't tied to the chair or restrained in any way. He and the others got up to follow Honey. Honey made it to the door and tried to reach for the handle. There wasn't one.

"I'm afraid getting out of here won't be that easy," the suited man said in a very calm voice. "We are not the idiots you usually deal with."

Hiro turned to face them. "What do you want from us?"

"Let's talk," the woman said.

"What if we don't want to?" asked Fred, arms crossed. It was then that Hiro realized that all of their armor and their weapons were gone. But something even more important was missing.

"Wait, where's Baymax?" Hiro tried his best to hold in his panic, but some probably showed, because now the woman appeared even more amused.

"Your robot is with some of our specialists. We will give him back without alteration if you agree to our terms," the woman said.

This didn't sound good. "What terms?"

"Sit."

"No, you can tell us quickly while we are standing up."

"Hiro Hamada," the woman said. "You live above the Lucky Cat Café with your aunt, who is currently in her room, which is directly connected to the kitchen. Your room is further up the steps. Your lab at San Fransokyo is in room A113."

"So, you know me. What do you want?"

"Sit down, Mr. Hamada. We have all of your information from your social security number to current surveillance of the café below your house. We were able to easily set up a system of knockout gas in your garage, and knew your team well enough to know that you would get together there first. We also currently have your brother's robot in our custody. You know your situation and I know you can guess what might happen if you continue not to listen."

Hiro fumed at their casual mention of Tadadshi. But not seeing much of a choice, Hiro sat down. The others did the same. Hiro observed the room around him and the room in front of him. The doors were solid metal and probably too thick to be kicked down. The glass separating the rooms looked like laminated safety glass, meaning it would be difficult to break. There was a panel in front of their captors that probably controlled more than the doors. The woman was a little taller than Gogo. She had a high forehead, narrow chin, and an expression so relaxed that Hiro bet that she had had plenty of meetings like this before. The man looked like he could be the professor in college that all of the girls would have crushes on. He had brown hair casually brushed to the side that matched his brown eyes and bold eyebrows. His face had a proud, amused expression. Hiro immediately labeled both as psychopaths.

"So," Hiro tried again, now that they were all seated. "What are your terms?"

"My name is Agent Hanson, and this is Agent Oshima," the woman began. "As I mentioned earlier, we are from G.I.R.I. Our mission is to keep this side of America safe. There are similar agencies across the country, but we focus on the West Coast and surrounding islands. We try to maintain a level of safety that the police force can regulate. We have been following your group for a while now."

Hiro was trying to wrap his brain around everything. "Why?" Wasabi piped up. "We've been helping the police! We were in the middle of stopping some nut job psychiatrist who got off on mentally scarring kids when you jumped us! Tell me we're the bad guys here."

Agent Oshima smiled. It would have seemed friendly if it weren't for the context. "We aren't your enemy. We're your protectors."

"Oh, that's why we're trapped in here. I see." Hiro wondered if now was the right time for sarcasm. Tadashi had warned him to learn when to keep his mouth shut.

"You misjudge us. We are here to make you an offer."

"An offer?" asked Honey Lemon.

"Yes," Agent Hanson said in a steady voice. "Your team could currently be charged with multiple accounts of destruction. Baymax could have been shot down on multiple occasions for flying into air pathways, even getting dangerously close to airplanes on two occasions. In short, your team has been acting recklessly. You are currently overconfident in your own righteousness and your own means to what you view as a necessary end. This is why you will listen well when we say we want to recruit you."

There was a silence. An odd silence in which words refused to leave your throat. The pair of agents continued to look at them like they were parents that just busted their naughty children.

"Recruit us?" Fred finally asked. "What, so you're the top secret government agency that wants an elite team of super heros to beat the villains that you can't beat?"

The woman smiled. "In a way, yes. We have our own issues to deal with, namely an escaped terrorist. Since our resources are spread thin."

Hiro pondered this. He didn't trust these people, but he feared what would happen if he said no. But the worst part about being a child-prodigy genius was his curiosity. These people knew something that he didn't know, something that was apparently urgent and threatening to the safety of many people. Hiro had to know what it was, even if it meant making the wrong decision. But he couldn't forgive the way that they used Tadashi against him.

"Say we agree, what would we do?"

Agent Oshima then began in a voice that sounded like he rehearsed it at least five times before. Hiro would bet all of his past bot fighting money that he practiced it in a mirror while fixing his hideously perfect hair. "As you now know, we consider it our mission to track and stop dangerous groups and individuals. There has recently been a surplus of dangerous individuals, an abnormally high level of surplus, that is. These vigilantes operate at a level that is within our spectrum, but – "

"Um, English please, Mr. Agent?" Fred interrupted.

"Crime levels and the number of super villains have gotten out of control," Agent Hanson explained. "We think that they might have a leader – that someone might be recruiting. People rarely all decide to turn to the dark side at once."

Fred seemed satisfied with her explanation and allusion. "And you want us to go after the leader! Sweet!"

"How do we know we can trust you?" Hiro demanded, still skeptical.

"Asks the anti-crime team that operates in your Aunt's basement," Oshima answered, looking smug. "But you could trust all of our recent crime data."

"You could have made it up," Hiro pointed out.

"True," Agent Oshima said. "But even if you don't trust us, believe this: if you fail to agree to our terms, you will no longer be permitted to do your amateur crime-fighting. Your days of rampaging across the city, neglecting to respect property, are over. You do not want us, or any of our cooperating teams, as your enemy."

Okay, this is a little bad, Hiro thought. Seeing no way out, he agreed. He would have to at least pretend to go along with it until they somehow found a way out. Maybe after they caught this guy, they'd be free. "Fine, what do you know about this leader?"

...

The alleyway was narrow, and two men cowered at the end of it. The dark sky overhead and the noises of a bot fight not too far away gave her the perfect cover. Funny that she was here to save these men, but they were running from her like prey from a wolf. That was fine; soon they would know her as their liberator.

As she approached them, they shrank further against the brick wall. Ignoring the odd sense of satisfaction that their fear gave her, she opened her mouth, hoping that her soothing voice would make them relax. "You are a long way from home, aren't you?"

The men were silent, their eyes wide with fear and their bodies lightly trembling. God, these two were the least interesting of her growing flock, preferring silence to screaming and violence, letting insanity whirl within instead of unleashing it upon the world of uniformity. Luckily, all problems are fixable.

Reaching out a hand, her partner gave her the syringe. The liquid inside gleamed. She turned to the men, who began jerking around.

"Now, you will sit still, or I will have to have my partner stop you." She turned to the man. He nodded in understanding and a fire appeared on his palm, illuminating and warming the scene.

The jerking quickly subsided into sudden terrified silence. Perfect.

Hope you enjoyed! Please don't hesitate to review!

Giri in the Big Hero 6 comics was an agency similar to SHIELD. They recruited the members of the beloved team and sponsored many of their missions. Oshima was their spokesperson.

Most of the psychology/science mentioned in this fanfic will be either accurate or somewhat plausible (like Honey Lemon's purse being able to create a perfect chemical reaction in her purse, which is awesome, but would be difficult to recreate in real life).