A group of aliens worship Jenny after she is mistaken for a "comet goddess". It's fun at first but they soon drive Jenny crazy. However, when confronted, the aliens promise to leave her alone after one last ceremony. Jenny unwittingly pulls the Sun towards the Earth, and uses the same ceremony the opposite direction. She then hurls the alien's spaceship into an elliptical orbit around the sun, turning them into a comet. The Earth is saved, but someone's missing...

Turns out, poor Sheldon was stuck on the aliens' ship when Jenny got rid of it (in the previous episode), and he's been spending decades trying to get back to Earth (even though it's only been a short time on Earth since he left). Hopefully, Jenny can get him back to his proper age.

Jenny really wants a popular music player called the "Musique," but it's very expensive. So Jenny tries another method: shoplifting!

With Misty hanging in Tremorton and doing her part in keeping the town safe (though not for free), Jenny decides to leave the superheroics to her and starts to slack off. But when Misty's mercenary habits clash with Jenny's views on protecting the innocent, fisticuffs break out between the two. What's going to become of their friendship?

One of Mrs. Wakeman's old creations, a robot puppet named "Li'l Acorn", tries to make Jenny his bride.

Jenny, Brad, Tuck, and Sheldon end up stranded on a deserted island inhabited by hostile robotic clones of historical figures. To make matters worse, Jenny's auxiliary power is about to run out! Featuring Uncle Wizzly, based on the famous creator of the Wizzly theme parks.

Melody returns to Tremorton, and Brad begins spending more time with her. Is Jenny merely getting jealous, or is Melody more of a dischord than she seems?

If Tuck doesn't pass his next assignment, he's going to wind up repeating the second grade. His assignment: a project on his personal hero. His subject: Jenny. His project: create a movie centering on Jenny's life. His personality: too enthusiastic for anyone to stand. Along with a generous amount of creative license.

Jenny fails an audition for the school play of Romeo and Juliet, due to her being a robot. However, her and the play's director's views are questioned when two different races of aliens land for a surprise visit.

After a group of runaway living fruits and vegetables is stopped by Jenny, a jealous Skyway Patrol lieutenant seeks to permanently shut her down.

Sheldon is recruited to become a sort of secret agent, and stumbles onto a supposed plot to destroy every last robot in Tremorton.

The Space Bikers have managed to rebuild Jenny into a motorcycle, and now she and Tuck are en route to their hideout to demand them to change her back!

Vexus is back, and with a new look. Having paired up with Brit and Tiff, the ex-Cluster Queen is becoming quite popular in school, to the point where even the Crust Cousins can't compete.

After destroying a series of asteroids that threaten to destroy the Earth, Jenny returns to earth, bringing with her a dust that severely alters the characteristics of her close friends.

Jenny wakes to find herself trapped in a mysterious place, where laser guns and other mechanisms meet her every move and the only company she has is...Killgore?

Jenny has a crush on a new kid named Travis, but there's only one problem: Travis is afraid of anything mechanical. The scene with Travis' father in the factory is based on the Charlie Chaplin motion picture, "Modern Times".

Jenny winds up getting homeschooled by Dr. Wakeman due to a mishap at school involving a student and a trashcan. Jenny may not like it, but her mother enjoys the chance to teach her daughter... perhaps too much.

Brad is getting married, but not by choice. The Space Bikers want poor Brad to get hitched to Tammy. But does Brad really want to be rescued?

Skyway Patrol wants Jenny to pay for repairs to the city due to her fights, and now Jenny is on a desperate job hunt.

Vladimir, Lancer, Mudslinger and the Mad Hammer Bros. form the 'Legion of Evil' to seek their shared vengeance on Jenny.

Sheldon tries to make Jenny jealous by paying Pteresa to be his girlfriend.

After almost getting hit by a truck, Tuck becomes hyper-paranoid about everything, until Jenny shows himself in the future, perfectly healthy. Tuck realizes that he's not going to die until he lives a full life, and decides to become a daredevil, seeking fame and glory. Unfortunately for Jenny, this means a lot of stopping what she's doing and saving him from his crazy stunts.

Jenny, Brad, and Tuck can't seem to agree over the rules of a board game. But when the boys tag along on Jenny's mission to a garbage dump asteroid, they run into Vexus, Smytus, and Krackus who are stuck in the asteroid. The ex-Cluster Queen is looking to drain Jenny of her energy, but she and her henchbots can't agree on what to use the power for.

Jenny unwittingly dishonors a Japanese vacuum robot while on a mission to Tokyo, and she must restore the robot's honor.

At the Invention Convention, Professor Wakeman's latest robot goes haywire. Soon after, all the previous XJ robot models begin to attack as well. It's up to Jenny and her mother to find out why.