Spacely convinces all his employees to take an aptitude test and makes sure George scores the lowest. But when Judy, Elroy and Astro alter his father's score to be higher than everyone else's, George is given charge of Spacely's plant for the day when his boss is forced to take an impromptu vacation. Upon discovering that George is in charge of Spacely's plant, Cogswell makes plans to destroy Spacely Space Sprockets once and for all and attempts to ensure that George takes the fall.
George is convinced by Orwell, Spacely's nephew, to clone himself and improve his traits. But this new-and-improved George leads the original into believing that his family doesn't need him anymore.
Jane enters a garden contest. Astro crushes Jane's plant and the plant passes away. George buys Jane a new plant at 'Far Out Flowers', a rare import 'A Martian Creeper'. It turns out to be a very rare breed ...
Rosie falls in love with the robot of the janitor. To get a 'green card' for that robot they need to get married. But can robots get married?
George has a tooth ache and visits his dentist. The dentist uses an experimental artificial teeth for George. The tooth turns out to be a dog's tooth but cannot be replaced because the dentist left for a vacation. Still George starts chasing cats and mailmen and barks at his family member.
The annual father/daughter dance means embarrassment for Judy so she fakes the 48 hour flu. Still Jane promises that this year will not be the disgrace from last year because dad is taking dancing lessons. Using a super sniffer the kids try to find their father to peek at one of his lessons.
It seems that Orwell Spacely, Mr. Spacely's nephew, is the company's inventor. George becomes the company's Guinea Pig. Just when the patrolling police think no one breaks the 500 mph speed limit, they see a car driven by a man without a face. The new invention doesn't clean people like it is supposed to, it makes them invisible!
Rocky Retro is the new hunk in school and Judy loses him to Marcia because she has a car. Judy wants her own car and has to find a job to pay for that. She accepts three jobs: walking dogs through space, doing construction work and taking orders at a fly-thru burger joint in a nearby solar system.
Elroy invents an evolution machine. By mistake his evolutes Astro by 10,000 years, increasing his I.Q. by 4000 points. George bets everything he owns by playing chess with a little help of Astro. At that moment Astro is caught by the dogcatcher. When that doesn't work he enters a brainy game show where the contestants can win millions.
A malfunction of the TeleViewer causes Elroy to discover a robbery plot by "The Gripfather" (a take on "The Godfather"), and George ends up trapped in the middle of it.
