Jimmy's dad loses his job at the now defunct automotive plant which means that the Neutrons may have to move to a new town. As a last-ditch effort to keep the family in Retroville, Hugh applies for a job as a toy inventor.
Jimmy is recruited by the most prestigious science college in the country to be their new superstar student. But when he gets there, Jimmy becomes the unwitting target of rival student, Seymour Nimmelfarb.
The Neutron family has gathered to celebrate Aunt Maybelline's birthday. When Jimmy's present explodes, everyone suspects him of fowl./On a trip to Planet Schmengy, a strange alien substance attaches itself to Carl's face.
When the entire population of Retroville is accidentally hit by Jimmy's shrink ray, the Space Bandits abduct everyone with the nefarious plan of marketing and selling them throughout the galaxy as living dolls.
A new TV show turns everyone in Retroville into mindless and exceedingly cheerful zombies./To impress Betty Quinlin, Jimmy performs a magic show using a cheap magic kit that's full of his own technological upgrades.
Carl's pen pal, Elke Elkberg from Sweden is coming to Retroville to meet him, and Carl is in a panic.The boys travel to the Bahama Quadrangle to disprove the myth of the disappearances associated with the mysterious site.
Goddard is disqualified from the Retroville Pet Show because he is not technically a real dog./SheenÂ's dad, Mr. Estevez desperately wants to impress his son. Mr. Estevez has to pretend he is a superhero in order to impress him.