Robotics prodigy Hiro Hamada learns to harness his genius—thanks to his brilliant brother Tadashi and their like-minded friends: adrenaline junkie Go Go Tamago, neatnik Wasabi, chemistry whiz Honey Lemon and fanboy Fred. When a devastating turn of events catapults them into the midst of a dangerous plot unfolding in the streets of San Fransokyo, Hiro turns to his closest companion—a robot named Baymax—and transforms the group into a band of high-tech heroes determined to solve the mystery.