Hiro and Go Go accompany Krei to the woods to deal with Nedd Ludd, however they run into the monster of legend, the Hibagon, along the way!.
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.