In Son of Flubber, a wacky inventor named Ned creates a new kind of rubber called Flubber. However, his invention causes chaos when it goes haywire and starts causing havoc in the small town. As Ned tries to fix the situation, he must deal with the IRS, top-secret experiments, and his old flame. With the help of his students and the local football team, Ned attempts to control the Flubber and save the day.
The Absent-Minded Professor follows the story of a bumbling professor who invents a substance that enables objects to defy gravity. Chaos ensues when others try to get their hands on the invention.