Baymax pointed to his chest. "Tadashi is here --"

Hiro nodded and said, "Tadashi's gone."

Hiro shook his head. "You can't fix this one, buddy."

"You are my patient. I would like to help," he stated.

"Yeah," Hiro replied. "He should have. But there was a fire… and now he's gone."

Hiro lowered his head and said, "He's dead, Baymax."

Baymax couldn't accept that answer. He was programmed to help his patient in any way possible. He turned to Hiro's computer and began to access information.

"No," Hiro cut him off. He pushed the robot's hand away. "People keep saying he's not really gone as long as we remember him. I don't buy it. It still hurts."

Baymax scanned Hiro. "I see no evidence of physical injury."

"Tadashi," Baymax repeated.

"It's a different kind of hurt," Hiro said, watching the robot step out of his charging platform.

Baymax seemed confused. "Tadashi was in excellent health. With a proper diet and exercise, he should have lived a long life."

Hiro sat up like a shot. Baymax had definitely gotten his attention. "What?" Hiro asked. He saw Baymax holding Tadashi's baseball cap.

"When will he return?" Baymax asked.

"I'm downloading a database on personal loss. Database downloaded. Treatments include contact with friends and loved ones. I am contacting them now."

"No, no, no… I, I… don't do that!" Hiro said, and shook his head. How could he explain to Baymax that he just didn't know how to be around people right now? He couldn't pretend things were okay, and he couldn't be sad around them, either.

"Your friends have been contacted," Baymax said.

"Other treatments include compassion and physical reassurance."

"Uh, what are you doing?" Hiro asked.

"Unbelievable," Hiro grumbled, and Baymax suddenly reached out and gave him a hug. "What are you doing?" Hiro asked.

Hiro couldn't help but smile. "Thanks, Baymax." He had to admit, the hug did make him feel a little better.

"I'm okay, really," Hiro said, trying to push him away. But then he realized Baymax was trying to help. Hiro gave him a hug back.

"You will be all right. There, there," Bamax said, patting Hiro on the back.

"I am sorry about the fire," Baymax said.

Hiro was suddenly reenergized. He now had a purpose. He had to find the guy in the mask. But how? He'd already tried the police. They weren't going to help.

Then all at once, the pieces fell together. "The guy in the mask stole my microbots, and then he set the fire to cover his tracks!" Hiro exclaimed. "We gotta catch that guy!"

"It's okay. It was an accident," Hiro replied. He had never talked about it before, but once he'd said "accident," the wheels in his mind started turning. He looked up at Baymax. "Unless… unless it wasn't."

He put his hand on Baymax's arm, remembering that in addition to being deflated, it was also covered in tape. The robot wasn't built for battle. But bot-fighting was a pastime Hiro was very familiar with. He suddenly saw Baymax as a giant version of one of his fighting bots. "But first, you're gonna need some upgrades."

Hiro's mind was racing with ideas as he snuck Baymax past Aunt Cass and out to the garage.