It was now evening at the San Fransokyo Institute of Technology in San Fransokyo, and the new Tadashi Hamada Auditorium buzzed with activity of the annual Robotics Expo. Construction had finished recently on the expansive, well-ventilated building.

 Hiro, a Japanese American young teen with messy black hair and black and purple hero outfit, sat in a folding chair behind a large piece of experiment, his sturdy helmet in his lap. He briefly examined the plexiglass face shield of the helmet while deep in thought, then donned it and used its built-in communication feature.

"Hey Wasabi. Anything?" he inquired quietly.

"Nothing suspicious," Wasabi said, then sighed in a bit in admiration.  "Just some cool cleaning robots," he added over his helmet com to Hiro and the others patched in. The young man was powerfully built and wore his hair in dreadlocks. He wore light green upper body armor, blue pants, a red headband, and a wide red belt.

He'd watched a presentation on advanced cleaning robots from backstage with interest. Now that was cool, he thought in admiration as the brother and sister team who presented smiled at the applause from onlookers.

"Fred, anything outside?" Hiro asked.

The lanky young man with shaggy dirty-blonde hair was seated on the roof of the building. He wore a blue and gold reptilian monster costume with three claws on its hands and feet, three giant gold eyes, four horns, and a spiked tail.

A nearly invisible shimmer in a few feet in width moved at high speed from below- the opposite direction from where Fred looked down.  The cover of darkness actually made it completely undetectable from a distance.

"All clear out here, guys," Fred responded in a more serious tone than usual. His family had lent a bit of their substantial financial support to the new fireproof building and he wasn't about to let anyone mess with it or anyone inside. Big Hero 6 had helped around the city a few times after their first fateful adventure and they were ready for trouble today.

"Go Go?" asked Hiro.

"Nothin'," she replied just inside the entrance near a few policemen. A few students waved to her, and she smiled back slightly in return with a small wave. The athletic young Korean American woman with short hair was dressed in her yellow and black armor, Mag Lev disks magnetically attached to her back. She rolled about on magnetic disks attached near her feet with practiced ease.

"Good. Same for me everyone," Hiro said, and looked over the activity on the west side of the building. A smartly dressed teacher with grey hair and glasses waved in appreciation to Hiro.

Despite everyone's experiments being screened, Hiro had walked this side of the expo to see if any looked suspicious. Baymax, a large white marshmallow man-like robot with two black eyes and no mouth, wore his red armor and was hidden beneath a black sheet against the wall. Hiro didn't want them to distract from the event itself too much though, which explained Baymax's discreet situation.

Hiro had asked permission of the head of the Expo for Big Hero 6 to attend. Though there was an impressive show of security due to the tragedy of last year, a public appearance of the heroes would likely help ease attendees' concerns even more. Also, Big Hero 6 could assist in case security couldn't handle a special kind of threat.

After all, this was their school.

"Honey Lemon?" Hiro asked.

The tall young blonde wore a pink-magenta mini-dress with long black sleeves and leggings, and like the others, wore a helmet. She also sported a purse with a strap made of colorful balls. "Okay over here," she replied warily in her light voice.

She looked over experiments on her side of the hall, admiring the hard work of participants in the process. Like the others (except Fred), her helmet was of a similar style, and she was reassured in its ability to protect her from knockout gas or a variety of other nasty attacks. She waved politely to anyone who expressed appreciation for her being there, yet was vigilant in her lookout as well.

Thanks to WOOHP's fake student IDs, Sam, Clover, and Alex had gained entry to the Expo and walked towards the center of the main hall. Sam's eyes lit up, she clasped her hands in front of her and looked around in delight.

"So cool! Look at that guys," she said emphatically, and pointed to a small machine for converting hazardous waste into environmentally-friendly packaging materials. Clover and Alex smiled at each other knowingly and joined her as she looked over the invention.

Alex put a hand on Sam's shoulder. "Of course you'd be distracted here," she said to her with mock admonition. "Don't forget to stay alert," she added with a chuckle.

"H-hey, I'm just staying in cover," Sam replied lamely. Her expression became serious though, when she remembered Jerry's words of last year's expo.

At a nearby booth, a slim brunette male student was demonstrating his small cube-like metallic invention to a few onlookers.  He placed it in small grey robot on the black folding table before him, and the tiny machine went from walking slowly and erratically, to swiftly and purposefully.  This earned the young man a bit of applause and a handshake from an older man.

Clover glanced around and noticed a few of the colorfully-clad heroes in the hall. "Wha... Superheroes? Are they part of security here?" Clover questioned in amazement and crossed her arms. "We might be redundant on this mission."

Alex's eyes widened as she followed Clover's line of sight to Go Go. "Wow! Hey, Jerry didn't mention that," Alex noted. She spotted Hiro off to her left. "Hm, that guy seems pretty young," she said and blinked in surprise.

"Mm hm, but this guy seems just right," Clover gushed musically and walked towards Wasabi, who had come from backstage to check around the area. Sam and Alex smirked at each other, considered what to say, then silently chose to split up and focus on searching for anything the heroes and security may have missed around the auditorium.

Clover made her way to Wasabi, and after she pretended to show interest in a nearby experiment, turned to face him. "Oh hello. I just wanted to thank you for helping provide security for the event," she said warmly. Wasabi blinked at the comment, wowed by the attractive student before him.

"Oh..." he said as he struggled to stay cool. "Glad to help out. Along with my friends," he added with gusto. "I enjoy this sort of stuff," he said with a gesture to the nearest experiment as he struggled to stay aware of any potential trouble.

She's really something, he thought. Just hope she's not distracting me for the thieves or something. He tried to read her expression to be sure.

Handsome, smart, modest, heroic...Clover thought to herself. This mission's off to an awesome start. I've gotta get his number.

"Hello," Sam greeted Wasabi. Clover had been so preoccupied that she didn't notice Sam and Alex had joined her. "Sorry if my friend's distracting you," she said and eyed the blonde evenly.

"Oh not at all, "Wasabi replied. "My teammates are helping out too," he said quickly as he spotted Go Go looking towards him. Go Go noted his company and shook her head slightly before she turned her attention back to the other expo attendees.

The next moment, the lights went out. Surprised by the darkened hall, people called out in surprise. Officers turned on their flashlights to search for the cause of the trouble. Hiro pulled the sheet off of Baymax with a frown.

"Hey buddy. What're you seeing?" he asked the robot in alarm. Hiro dug into a belt pouch and pulled out a small, powerful flashlight that he aimed in various directions.

"A cloaked robot... that way," he replied, and pointed to near the opposite side of the room. Hiro turned the light to Baymax to see the direction he pointed, then aimed the light in that direction.

"Please, nobody panic," a man said loudly. The head of the event was a man in his early forties, tall and confident in a semi casual outfit. "Backup generators should have the lights back on," he announced to people who already made their way to the exit.

Ironically, Hiro, who was one of the last people who shouldn't be panicked in this situation, had to ponder those words for a moment.  Just moving his arms a bit ensured he hadn't froze up.  Mind working, he decided on the words he needed to change try to ensure preventing another disaster similar to last year.

"Fred, you hearing this? You didn't see anything?" Hiro asked over his com in agitation.

"Nope," Fred said bluntly. "I'll come join you guys!" he said excitedly.

Hiro thought quickly. "No, stay there for now to keep an eye out for surprises," he replied.

Fred considered this for a moment. "Hm, you got it. If you're in trouble, call me," he said.

"You got it," Hiro said, and focused on the situation before him.

Go Go spotted the strong beam of light in the area where Hiro and Baymax were. She looked to where their light was aimed and had a disk ready to toss at any potential enemies. Nearby people were quickly getting out of the way of crashing sounds. An older man in a dark brown suit with a mustache and hat, however, was snagged by cloaked tentacles that shot out violently and grabbed him by the upper arms.

"Dad!" shouted a young thin man with short brown hair. He reached for the older man in concern.

Another tentacle arm swiftly snaked over and swatted the student away; it then moved to a small electronic device at a display area that the young man stood near beforehand.

Security officers closed in on the robot, which was only detectable due to the chaos it was causing. Go Go caught the flying student by the backs of his upper arms before he could crash into the floor and her armor absorbed the slight impact.

The thieving machine slid open a door on its underbelly and instantly retracted its tentacle to pull the device inside. The older man was released and stumbled a bit in surprise. "Kevin!" he yelled.

Kevin thanked Go Go and winced a bit from the blow to the chest from the robot. His father joined them, dismay upon his features. "Your Super Processor..." he trailed off sadly.

Hidden behind a display stand, Sam, Clover and Alex held their X-Powders out and each pressed a button. In a shimmer of light, their casual wear was replaced by their green, red, and yellow spy catsuits, complete with Jet pack Backpacks.

Hiro and Baymax, meanwhile, continued to track the cloaked robot. It slammed through a few guards who tried to bar the nearest exit. The robot then swiftly yanked open and exited the double doors. Big Hero 6, the spies, Kevin, his father, and security guards followed in a rush. 

"No... we can't blow this," Hiro muttered desperately, focused intently on pursuit.

A/N: Thanks very much for reading. Please vote and comment if you enjoyed this!