Krei smiled. "You're about to become a very wealthy kid."

"Shut up!" Hiro repeated.

"Shut up!" Hiro exclaimed in disbelief.

But Hiro and his friends weren't the only ones who heard Krei's offer. Professor Callaghan did, too. "Hiro," he said, "Mr. Krei is right. Your microbots are an inspired piece of tech. You can continue to develop them. Or you can sell them to a man who is only guided by his own self-interest."

"That was an impressive display," Krei said, gesturing to Hiro's microbot. "May I?" He took the microbot from Hiro and turned it in his fingers. "With some development, these could be revolutionary. That's why I want them at Krei Tech."

The showcase hall was buzzing as students waited for the judges' results. Hiro, Tadashi, and the gang were anxiously waiting, too, when a large, imposing figure approached them. It was Alistair Krei.

Krei held up a hand. "Robert, I know how you feel about me, but it shouldn't affect this young man's opportunity to --"

Professor Callaghan cut him off. "This is your decision, Hiro. But you should know, Mr. Krei has cut corners and ignored sound science to get where he is."

Krei seemed surprised and a bit insulted. It wasn't often that he heard the word "no," and he didn't like it. "I thought you were smarter than that," Krei said to Hiro. But Hiro's face was unchanged.

Hiro looked at Tadashi, but his brother smiled at him, knowing he would make the right decision. "I appreciate the offer, Mr. Krei. But they're not for sale."

"That's just not true," Krei argued.

"Hiro, I'm offering you more money than a fourteen-year-old could imagine," Krei said.

Everyone was surprised by the professor's statement. They looked at Hiro, waiting for an answer.

"I wouldn't trust Krei Tech with your microbots," Callaghan said, staring straight at Krei. "Or anything else."

Krei opened his hand and seemed surprised that he'd somehow walked off with Hiro's microbot. "Oh, that's right," he said with a chuckle. But Tadashi knew better. Krei tossed the microbot to Hiro, who stuffed it back in his pocket.

Once Krei realized there wasn't going to be a sale, he spun on his heel. "Robert," he said, addressing Callaghan as he started to leave.

But Tadashi stopped him. "Mr. Krei?" he said, tapping him on the shoulder.

Krei turned and Tadashi pointed to the large man's hand. "That's my brother's."

"You made the right choice," Callaghan said, and handed Hiro an envelope with the SFIT crest on it. "I look forward to seeing you in class." Hiro beamed. He did it. He had won admittance to SFIT!

Fred was the most excited. "Yes!" he shouted. "Nothing is better than free food!"

Hiro and the gang burst from the showcase hall. Aunt Cass pulled them into a group hug. "All right, geniuses, let's feed those hungry brains," she said. "Back to the café! Dinner is on me!"

"Hey, where are you going?" Hiro asked Tadashi as Aunt Cass and their friends headed for the Lucky Cat. Hiro thought maybe Tadashi wanted to help him gather up his microbots in the showcase hall. But Tadashi threw his arm around his brother and the two walked onto the campus.

Minutes later, Hiro and Tadashi were staring at the gleaming steel-and-glass robotics building in the distance.

Tadashi smiled. It had been a perfect day. "Aunt Cass? We'll catch up, okay?"

"Sure. I'm so proud of you. I'm proud of you both," she replied, hugging Tadashi and Hiro again.

"I know what you're going to say," Hiro said. "I should be proud of myself because I'm using my 'gift' for something important."

"No," Tadashi replied. "I was just gonna tell you your fly was down through the whole showcase."

Hiro looked panicked as Tadashi laughed. Then Hiro slugged him in the arm for making him look. "Ha-ha. Hilarious," Hiro said.

But Hiro became serious. "Hey. I wouldn't be here if it wasn't for you. So… thanks."

When they turned back to go collect Hiro's microbots, they were surprised to see black smoke billowing from the showcase hall. It seemed impossible, but the hall was on fire!

As Hiro and Tadashi ran toward the burning building, they saw people running out, gasping and coughing. The entrance was nearly engulfed in flames.

"You don't have to say that. I mean, it's true, but you don't have to say it," Tadashi said. The two brothers threw fake punches and began to wrestle as they laughed.

Tadashi stopped and grabbed a student. "Are you okay?" he asked.

"Yeah, I'm fine. Callaghan's still in there!"

"Tadashi, no!" Hiro said, grabbing his shirt.

Tadashi began to run toward the entrance.

Hiro knew his brother was going to try to save the professor.

Outside, Hiro heard a deafening boom and was knocked to the ground as the hall exploded.

Hiro reluctantly let go of his brother and watched helplessly as Tadashi ran into the showcase hall.

Inside was an inferno. But through the heat and smoke, Tadashi saw Professor Callaghan. Before Tadashi could reach him, he heard a large beam crack above his head.

"Callaghan is still in there," Tadashi said. "Someone has to help!"

"Tadashi!" Hiro yelled. He saw Tadashi's baseball cap lying on the ground nearby. He picked it up and cried, "Tadashi! Tadashi!"