Upon discovering Baymax's inherent abilities to detect if a person is lying, Hiro attempts to use Baymax to uncover proof of Liv's evil doing.
As the new prodigy at San Fransokyo Institute of Technology, Hiro now faces daunting academic challenges and the social trials of being the little man on campus. Off campus, the stakes are raised for the high-tech heroes as they must protect their city from an array of scientifically enhanced villains.