Chapter Summary: Big Hero 6 prevent a bank robbery and they battle with an old foe.

Disclaimer: Big Hero 6 and its characters belong to Disney. Any non-canon characters, however, are mine.


Chapter 1

Three years passed over at the city of San Fransokyo, a futuristic hybrid of artistic and technological architecture and a blend of both Japanese and Western culture. On many evenings, the bright skyscraper lights and colorful neon from many shops softened the dark night sky, giving the bustling city an inviting glow. This city is home to technology giants such as Krei Tech and San Fransokyo Institute of Technology (SFIT). It was also the home of a group of superheroes known as Big Hero 6.

Hiro Hamada, now fifteen-years-old, hangs on tight on top of Baymax the robot's back as the two zoomed through the city. Catching up to him are his teammates Gogo, Wasabi, Honey, and Fred. The six of them make up the official members of their group and each of them wear colorful costumes and equipped with high-tech weapons provided by Hiro.

Hiro first met Baymax and his four friends over a year ago when his older brother Tadashi introduced them to him on his first visit to SFIT. After Tadashi in a tragic fire incident started by Professor Callaghan in the process of stealing Hiro's microbot invention, Baymax—who happens to be a medical caregiver robot created by Tadashi—and his friends were there by his side and helped Hiro find justice and overcome his grief.

Hiro was so thankful that he has Baymax and his friends to and help him fulfill Tadashi's dream of helping people. They're going to use their superhero skills to protect and assist the people of San Fransokyo from crime and disasters.

It just so happens on this night that they received report that that there's a bank robbery down town. When Big Hero 6 finally arrived at the scene, they saw a huge hole on the wall of a large bank that looked it had been blasted away.

A gold-and-black, gigantic figure walked out of the bank through the hole, carrying two large sacks filled with money. It looked like a giant, deadly battlebot. It was almost twice bigger than Baymax. Hiro knew immediately recognized the design of the robot and its symbol painted on its body.

"Nice of you to show up, Zero and company," a familiar voice boomed from the robot.

"Drop them, Yama!" Hiro ordered as his team stand firmly on the streets, facing their enemy.

The mask of the battlebot suit opened up to reveal a video of Yama's large face. It appears Yama is controlling the robot from a hidden location.

A long time ago, Hiro defeated Yama in a botfighting ring and the sumo wrestler-sized man soon sought revenge against the young genius. Recently, he and his gang were causing trouble for the city by controlling big version of battlebots and programming them go on random rampages. Hiro did not know where Yama got the tech to create such machines but he and his friends were able to successfully defeat so many of his members and destroy their bots yet they could never apprehend Yama, since they could never find him or he manages to slip away from their fingers.

"What if I say no?" Yama sneered, his eyes glint haughtily.

"Then we'll take those bags by force," Hiro replied. "I bet you missed spending time behind bars."

"I'm not going back to jail!" Then the mask closed down on the video with a snap. He dropped the money bags and went into fighting mode. "You have no chance of defeating my upgraded bot champion."

"Mister Yama, we fought your robots before," Honey said. "How will this one be any different?"

"Because this time, I will win! After your defeat, Zero, you will leave this city in shame, and everyone will know that Yama is the greatest botfighter in all of San Fransokyo!" Yama declared as the robot's buzzsaw hand activated.

"Please, I could beat your Little Yama with my eyes closed," Gogo scoffed.

"No. Not this isn't Little Yama… This is BIG YAMA!" he laughed as the robot approached menacingly at the group. "Enhanced using the best technology given to Yama for his services. Big Yama will crush your bones like sticks!"

"Look, I don't care for your overcompensating robot," Hiro said. "I want to know who's providing you the parts to build it. I know you're not that smart." He wanted to add that he finds Yama's nickname for his colossal robot ridiculous but he decided to save it for later.

"Like I'd reveal anything to a little cheater who hustled me!"

"Wow, what a sore loser," Wasabi commented. "Yama, have you considered seeking professional health…?"

Big Yama charged towards them. The team dispersed and the battlebot crashed into another building opposite from the bank.

"Come on, guys, focus!" Hiro cried. He leaned his head close to Baymax so he can talk to him. "Baymax, can you scan to see if there are any weak spots on that robot?"

Baymax did as he was told.

"There's several located on the back, shoulders, and joints," he answered. "They are not as solid compared to the rest of the body though they would need some weakening first."

Hiro turned to his friends, quickly giving them their instructions. "Here's the plan… Big Yama may start off slow, but it becomes faster and deals heavier damage the more it keeps moving. The good thing is that it can slow down so it can charge up its energy. But only a brief moment. That's where you use your chem-balls, Honey."

"Got it!" Honey rapidly start pressing the chemistry symbols on her purse.

"Gogo will distract him from a distance, and Fred will use his fire attacks to superheat the armor until they're brittle. When Big Yama gets weakened enough…. Wasabi, Baymax and I will strike him down!"

"Let's do this, amigos!" Fred roared as he released a burst of flames from his kaiju suit.

Before the team can act, a flying projectile came out of the blue and exploded near where they were standing. Everyone was thrown backwards, disoriented from the surprise attack.

"Where did that come from?" Hiro shouted after the smoke from the explosion cleared.

"It came from them," Baymax calmly answered, pointing a finger up into the sky.

Everyone looked up to see two men hovering in the air, supported by rocket jetpacks they're wearing on their backs. They're both wearing dark brown suits with protection elbow and knee pads, and goggles covering their eyes. One of them is carrying a rocket launcher.

"It's the Banzai Brothers!" Hiro gasped.

The two men he identified are an infamous rocket-powered duo who loved to blow things up for both personal amusement and monetary gain. Hiro was surprised to see them working with Yama because the two men don't usually work with anyone.

"Awwww, I missed them, bro," the one carrying the weapon slurred. He is Komeiji.

"That's because your aim sucks if you drink before the job," his partner grumbled, biting on his cigarette. His name is Dominguez. "And we were supposed to keep their annoying mascot alive."

"Who are you calling a mascot?!" Fred shouted, clearly offended by that remark even though he actually is a school mascot.

"Freddie, look out!" Honey screamed.

Fred looked around just in time to see Big Yama swinging one of its heavy hands at him. It smacked him away easily like a ragdoll. Fred fell to the side, groaning in pain.

"Ow, that hurts!" he howled.

The other members tried to assist Fred but they were stopped by a blast of a rocket from the Banzai Brothers. Big Yama then jumped up and landed on the ground, causing the earth to shake and the superheroes lost their footing.

Hiro realized the Banzai Brothers needed to be stopped if they're ever going to take down the battlebot.

"Hey, why don't you pick on somebody who can fly like you?" Hiro angrily shouted at the duo as he hang on to Baymax, who is now suspended in air with them. With Hiro's instructions, Baymax zoomed off.

"Let's go after them, bro!" Komeiji shouted.

"No, we're not allowed to touch that brat! Boss' orders!" Dominguez reminded.

"Aww, bro! I wanna blow up the robot!"

Dominguez rolled his eyes and took out his own rocket launcher. "Alright, fine. You take care of the robot, I'll deal with the others," he said.

"Yaaaay!" Komeiji grinned with glee as he flies away.

Dominguez was then struck by a maglev disc came out of nowhere. He flinched backwards, still suspended in the air, and turned to glare at Gogo.

"Why don't you deal with me?" she snapped at him before zipping off on her wheels. Snarling, Domingquez flew after her. He fired rockets but she dodged them with her incredible speed.

Big Yama reappeared, shaking the cement debris from its body. Wasabi, Honey, and Fred looked at each other.

"What do we now?" Wasabi asked nervously.

"We stick to the plan!" Honey answered.

The robot began chasing the three, gaining speed and smashing up the street and other obstacles its path.


Unbeknownst to everyone, a small round robot rolled into the scene and hid from plain sight. It resembled a blue daruma with a crescent moon symbol on its body. It opened its tiny hyperspectral cameras and began recording. On the roof of a nearby building and from a safe distance, two high school level kids were livestreaming the battle on a laptop.

"This is so cool!" A confident-looking girl named Mirin exclaimed, her eyes glued to screen. "It's a good thing we were nearby when that giant robot appeared."

A frail-looking boy around Mirin's age coughed.

"At least we can watch Big Hero 6 in action without getting in their way," he said quietly. "I hope nothing bad happens to Luna." He was referring to his darumabot. He tried to adjust the camera filters on his laptop. The screen remained hazy. "This is the best quality I can get, there's a lot of interferences."

"Ugh, you should also fix the sound quality, I can barely hear them!" Mirin pouted, biting her lap.


Back to the battle, Big Yama kept tossing and destroying things in its path with its buzzsaw weapon. After gaining some distance, Fred blew a blast of smoke to obscure the robot's vision.

Yama appeared again on the video screen of his robot's face.

"You think a little smoke screen can stop Yama?" he growled. A ball made of acid splat into the video, melting the screen much to Yama's fury.

Honey used this chance to toss her chem-balls at its metallic legs. Pink, sticky concoctions burst upon impact, foam hardening to slow down the robot's movements.

When Big Yama was finally came to a halt, Fred jumped around and blew fire at the armor. Steam begin to rise from its body.

"Looks like you're in a sticky situation," Wasabi smirked.

His gauntlets released his plasma laser blades. He leaped into the air like an athlete and sliced apart the robot's armor.


Mirin is watching the scene and she's cheering loudly in Yasuo's ear.

"Look at him go!" she squealed. She was shaking Yasuo's shoulder in excitement. "Are you seeing this, Yasuo?!"

"I am, I am!" Yasuo said.


Meanwhile, the Banzai Brother Dominguez keeps trying to blast Gogo away.

"Stay still, you little coward!" he shouted.

He then shot several grenades on a good distance. Gogo avoided each explosions, maneuvering between them.

Gogo zips up against a wall of the building, leaps into the air and kicks a disc off from her foot. The disc flew straight into Dominguez and hit his jetpack. It began to go haywire and Dominguez tried to take control while he flies off.

"I'll get you next time, Big Hero 6!" he promised.

"There won't be a next time!" Gogo shouted and threw another disc. It struck his head and he crashed into a dumpster.

As for the other Banzai Brother Komeiji, looked around for Hiro and Baymax until he saw the two of them now flying in the air with him.

"Baymax, Rocket Fist!" Hiro shouted an order.

Baymax shot his signature fist at the man but he dodged it away in time thanks to his jetpack. He snorted incredulously at the two superheroes.

"You call that a rocket?" He pointed his rocket launcher them. "THIS is a rocket!"

"Go, Baymax!" Hiro shouted. Baymax flew straight towards Komeiji.

The bomber launched the projectile and the nursebot managed to punch the rocket, sending it flying upwards into the sky before it exploded. Komeiji was rendered speechless. But before he can fire another rocket, Hiro held out his hand. His upgraded electromagnetic glove pulled Komeiji towards him like gravity and Baymax managed to catch the criminal in his hands.

"Awww, rats!" he groaned.

Several minutes later, the police arrived and arrested the Banzai Brothers. A crowd of civilians gathered to see their favorite protectors once again saved their city from a rampaging robot and a couple of bombers.

"Thanks again, Big Hero 6!" a police officer shook the leader's hand. He and the other officers could not see the boy and his teammates' faces since they were covered by dark visors, preventing their true identities from being found out.

"No problem!" Hiro nodded.

"We're sorry about the damage," Honey apologized, glancing at the destruction in the street.

"Most of it was Big Yama's fault," Fred spoke up.

"I don't care whose fault is it," a female police officer snapped as she walked up to the group. "You're all still involved with this mess, and we're the ones who has to clean up after you."

"That's enough, Park," warned the same policeman who shook Hiro's hand.

Mirin managed to free herself from the excited crowed and hurried towards the superheroes, pulling her reluctant friend Yasuo along. Wasabi saw her and he quickly hid behind Baymax for some odd reason. Gogo noticed this.

"Can I have your autograph?" she asked, panting heavily. Her eyes were star-struck while Yasuo shyly looked away from the heroes. "Actually two? One for me and my friend? We're both big fans of you guys!"

"Huh?" Yasuo perked up. "N-no, I'm good…"

Honey smiled at both kids and began writing on a notebook Mirin is carrying with her. She wrote "Big Hero 6 Never Gives Up" in big curvy letters.

"Hope you like it, sweeties~" she said, giving back the notebook.

While Mirin tried to ask for more autographs from the other members, Hiro walked over to the pile of the battlebot's remains. He wished Tadashi was alive to see how much they've accomplished. Hiro felt a small twinge of sadness weighing down his heart; what happened to his brother cannot be helped. While he still has regrets for not doing something to stop him in time, Hiro knows he's doing the right thing that would make his big brother proud.

He sighed thinking that team still need to find Yama and catch once and for all. He doesn't know why Yama is committing random crimes or how he managed to build super-powerful robots, but Hiro knows that he bears a grudge against him and wants to prove he's a better botfighter than the boy genius.

Hiro snorted at the thought. Guy names his bots after him. And they're as thick as his skull.

Something caught his eye and it lying on the ground near broken robotic parts. It looked small and flat. Hiro picked it up and saw it was a brass coin with a white chrysanthemum engraved on one side.

He wondered where it came from before he decided to pocket it as a souvenir. He returned to his friends who are all waiting for him.

"Okay, team! Move out!" he ordered.

"Wait, I wanna take a picture of you guys!" Mirin took out her camera. Then she pushed Yasuo forward until he's standing right next to Hiro. "Smile, Yasuo!"

"Huh?!" Hiro blinked.

"M-Mirin, please!" Yasuo blushed realizing how close he is standing to the purple-clad leader.

"Come on, my big brother won't believe me that I met you guys," Mirin said. Wasabi hid further behind Baymax much to Gogo's amusement.

Somewhere in the distance, hidden in the shadows under a billboard. A woman clad in geisha-esque attire and make-up is observing the superheroes. She is wearing an eyepatch and her hair is tied up in a fancy bun. Her name is Yuriko Fujita and she was known to be the referee and ringleader of several illegal botfighting rings. She also has another reputation in the criminal underworld.

She heard her cellphone ringing and she picked it up.

"Hello?" she spoke.

"I've got what I wanted," she heard a male voice speaking from the other end. "How are the Banzai Brothers?"

"They've just been arrested," she told him as she watched the police cars drove off with them. "Just as the boss planned."

"And Yama's robot?"

"Destroyed."

"That's unfortunate, but he will get a better one. Something much more suitable for his taste. Our men did great tonight."

Fujita chuckled darkly. "When do we start Phase 2?"

"Soon."


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