Beanie and Elwood have done their school science report on earthquakes, discovering that the town is built on a fault line. Admiral Bubbles, reading Beanie's report, realizes that with simple machine serving as a catalyst, he could easily destroy the entire town.

A huge battle between Beanie and Admiral Bubbles in the kitchen results in the destruction of the oven. When Mom discovers this, she decides to use the money she was saving to buy a new bed to buy an oven instead. Upset by this news, Beanie decides to find a way to buy Mom a new oven so that she can still get her new bed.

Temporarily set free, Admiral Bubbles plots revenge on his human jailers.

Beanie wins the school science fair; representatives of the Space Agency want to test Admiral Bubbles in zero gravity.

Beanie brings Admiral Bubbles to school; he decides to take his revenge on the students who laughed at him.

Admiral Bubbles persuades Mother to send Beanie to boarding school; he builds a bomb in the school's advance science lab.