Jimmy is tired of being a genius, so he decides to drain his brain to normal capacity. But when a big meteor heads straight for Retroville, who will save the day?

In order to get his new chemistry set right away, Jimmy hypnotizes his parents.

On a trip to Planet Schmengy, a strange alien substance attaches itself to Carl's face.

When Jimmy hides a time displacement device in the teachers' transportation to the annual education convention, the entire faculty of Lindberg Elementary is sent into temporary time limbo.