Poor Gregory, after being released from the Wishing Well Sanatorium, all he wants to do is make the children happy. So Gregory reopens the old ice cream factory, and all the unappreciative brats are reprocessed into the flavor of the day.

The joke’s on absent-minded scientist Wayne Szalinski when his troublesome invention shrinks him, his brother and their wives so effectively that their children think they’ve completely disappeared. Of course, this gives the kids free rein to do anything they want, unaware that their parents are watching every move.