Nick wants to appear on a show called Smart Mouth because he believes he knows everything. Everyone tells him that he is too young so Nick makes a number 2. But his parents eventually create an antidote so now they must convince Nick to go back to normal or he will be a grown up forever.

The shrink ray is not working and it shrinks Amy, Jack, Wayne and Jake so now they must try to get back to their normal size again. Also, Diane has a big surprise for everyone at the end of the show.

Wayne writes a story in his lab about a detective who must solve a case that becomes extremely confusing. Some of the people look very familiar in his story. Note: This was the last episode of Honey, I Shrunk the Kids: The TV Show. Both St. Claire Entertainment and the Walt Disney Company announced that the series would end after this episode.