Professor Karl Griffin unable to stand up to his boss at work, invents an invisibility serum in his lab at home. Meanwhile, his son, Josh, is having trouble with the neighborhood bully and grounded by his mother for not doing his chores. Josh decides to use the potion to become invisible so he can get out of the house (and presumably extract some transparent pay back against the aforementioned bully). Unfortunately, his mother accidentally drinks the potion instead. What neither Josh nor his mother realize is that Karl has yet to develop an antidote. Wackiness ensues as mom in her unseen state helps Karl and Josh solve their problems. Now, if only they can figure a way to restore her to normal. As a simple, easy going comedy, Invisible Mom should appeal greatly to younger children, but do not expect much more from it. Adults will easily see through numerous holes in its plot.