Excited by the prospect of working with his hero, Callaghan, Hiro decides he has to go to nerd school with his brother, and sets his mind to inventing something to impress the professor.
After revealing the invention that he hopes will get him into nerd school, Krei Tech's CEO offers to buy the technology, but Callaghan warns the boy Krei is unethical.
As an angry Hiro attempts to remove Baymax's healthcare chip, so it will help Hiro avenge his brother's death, Baymax reminds the boy of Tadashi's values.
On a visit to the San Fransokyo Institute of Technology, Tadashi introduces his younger brother Hiro to the people he works with, revealing people with very different personalities and their approaches to invention.
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