Brad and Tuck discover there's something very different about the girl next door. She is the super-powered Global Robotic Response Unit model #XJ9 but she likes her friends to call her "Jenny".
Dr. Wakeman's mutant lab rats, led by the evil genius Vladimir, vow revenge on their creator by by trying to take control of Jenny's body.
Jenny wants to go to the annual Townsquare Fair, but Wakeman is worried that someone in such a large crowd is bound to panic when they see a seven-foot mechanical teenager.
On her first day of high school, Jenny seeks to make some new friends with Brit and Tiff Crust. Unfortunately, the Crust cousins do not share the same feelings and plan to humiliate her.
Jenny makes a fan for life when she saves Sheldon from the shop class bullies. Jenny's happy to have another friend, but his instant devotion creeps her out.
A simple snowball battle between Jenny, Brad, and Tuck is interrupted by a strange robot ambassador who wants to make Jenny the newest member of the Cluster.
Tiffany Crust has just gotten her left ear pierced for the third time and this makes pierced ears the hot topic of the day.
Brad is disappointed by his lack of a driver's license, and Jenny's attempts to help him. Soon, he takes up joyriding in abandoned UFOs as a new hobby.
Wakeman has to be out of town on the weekend of the annual Minutian invasion. She has just the weapon to repel them but she's doubtful her daughter can keep track of it in the disaster area she calls a bedroom.
While on a mission in Japan, Jenny loses one of her language system discs, losing her ability to speak English. Stuck in Japanese, she encounters problems speaking to people back home.
Wakeman gives Jenny new and (she thinks) improved eyes with the power to see an incredible spectrum of imagery that is invisible to the naked human eye. The only problem is they're huge.
Jenny has been invited to her handsome classmate Don Prima's latest party, but following the aftermath of one of her latest ventures, she needs to get a clean-up first.
Brad has gotten an after school gig at the local malt shop. Jenny wants to hang out with him and the other teens but the owner doesn't allow robots. Jenny convinces Wakeman to revive her exo-skin concept to make her look like a normal teen.
Tuck keeps interrupting Jenny's daily activity for every possible favor. When a big problem arises, however, Tuck's call for help winds up going ignored.
One day, when Wakeman is out, Jenny discovers a secret room that stores her prototypes, XJ1 through 8. Excited to have sisters, Jenny activates them.
After discovering that Jenny is technically only 5 years old, the school system declares that Jenny has to be moved into an age-appropriate grade level, forcing her to adapt to kindergarten.
The Cluster infects Jenny with a microscopic nanobot that transforms Jenny into a Neanderthalish, robotic she-thing.
While trying out for the cheerleading squad, Jenny catches the football coach's eye. She is quickly drafted to be the new quarterback.
Smytus, Supreme Commander of the Cluster Armed Forces, loses some rare and deadly power crystals on Earth.
Sheldon continues to suffer through his unrequited crush on Jenny. She just doesn't look at him as boyfriend material.
Jenny realizes she doesn't have dreams or nightmares like other normal people. She has Wakeman install a dream program that operates when she is in her sleep mode.
Jenny's desire to know the feeling of physical contact leads her to steal a set of artificial nerves from Dr. Wakeman. The nerves, however, have only two settings: tickle and pain.
The Silver Shell uses his influence with Jenny to set up a blind date between her and his unidentified 'pal'.
Jenny is bubbling over with excitement about attending her first Robotics Convention.
On her first visit to the WizzleyWorld theme park, Jenny is appalled by the sweatshop -like conditions that the parks animatronics work in.
Jenny hates it when her mom calls her on the pager/monitor inside her chest.
Jenny volunteers to be a robot toy for an underprivileged tot at Christmas time only to become his unwitting, remote-controlled weapon in an attack on all the holidays.
Jenny uses one of Wakeman's inventions, the FutureScope, to see what will happen on Friday night.
Tired of catastrophes and supervillain attacks, Jenny wishes she could have just one normal day as a teenager with no interruptions.
Brad is frustrated with the secondary role he gets to play in Jenny's adventures.
The theory of planned obsolescence is introduced to Jenny when Brad buys a new calculator rather than upgrading his old one.
Trying to best his rival, Nora Wakeman, Phineas Mog builds a super robot hunk named Y-K9 (alias Kenny).
When group of super-powered teens appears in town and ask her to join, Jenny believes she's finally found her niche.
Jenny gets invited to her first slumber party, a famous annual bash thrown by Brit and Tiff.
Jenny is captured by the Cluster and used as the centerpiece of a killer robot. The mindless automaton, under the control of Smytus, wreaks havoc on Tremorton.
Wakeman won't let Jenny ask a boy to the Sadie Hawkins dance so she asks the Silver Shell (Sheldon's secret robotic alter ego).
A mad mechanical wizard invents a Disassembler to split Jenny into her individual parts and disperses them across the globe.
Jenny is nearly destroyed by Armagedroid, the most technically advanced creature on the planet.
Killgore, a tiny, harmless, wind-up robot, is so determined to capture Jenny and join the Cluster that he nearly drives her insane.
When Tuck discovers the Silver Shell outfit in Sheldon's garage, Sheldon buys his silence by making Tuck his superhero sidekick.
Jenny, desperate for privacy, converts the backyard tool shed into an opulent crash pad.
Jenny is accidentally transported to Cluster Prime, the planet ruled by her nemesis Vexus and completely populated by robots, where she goes through an emotional roller-coaster ride.
Jenny gets dissed by Brit and Tiff for "wearing" the same outfit everyday, so Jenny crams some fashion facts into her processors and the ultimate fashion competition begins. It's Jenny vs. the trend-setting Crust Cousins.
Tuck is thrilled to be in a Robot Wars competition, pitting his robot against others in gladiatorial combat.
Sheldon nabs Jenny's blueprints to find a way into Jenny's heart, only to have Vexus steal them away from Sheldon.
Tired of being stuck under Jenny's shadow, Brad sets out to be his own hero.
Jenny is convinced that Dr. Wakeman's new boyfriend is a psychopath.
A mysterious toymaker offers to design an action figure in Jenny's image after she gets her picture in the paper for her heroics.
Due to internal disputes, the Teen Team has broken up. With no place left to go, Misty heads back to Earth to be with Jenny.
Jenny tries to stop a new villain while hiding her superpowers from a handsome new boy at school.
Jenny is difficult in school, so Wakeman home schools her... and she's still difficult.
Jenny is suspicious of Brad' new girlfriend, Melody, especially when disasters keep happening wherever Melody goes.
Tuck does a school project about his hero, Jenny, and opts to make a movie about her, but his newfound power quickly goes to his head.
Jenny attacks ugly aliens who come to Earth to warn of an invasion by beautiful aliens.
Wakeman's earthy sister comes to visit, bringing her leaf-and-mud son, Glenn, but spends the whole trip arguing with her sister.
Jenny finds herself trapped in a mysterious enclosure with her nemesis, Killgore, and they must work together to get out.
The embarrassed lieutenant of Skyway Patrol makes it his personal vendetta to take down XJ9.
Jenny steals a music player while in disguise as "Ruby Rocket," and an angry crowd forces Jenny to battle her alter-ego.
Jenny takes a break from superheroing when her friend Misty takes on that role in town.
Sheldon tries to make Jenny jealous by paying Pteresa to be his girlfriend.
Five of Jenny's B-villains band together to stop Jenny. Only by finding some teammates of her own can Jenny hope to defeat this dastardly group.
A group of aliens see a flaming Jenny descending from the sky and decide that she is their Exalted One.
A strange, old man claims to be Sheldon, saying that Jenny accidentally threw him into space with an alien race and he's been gone 75 years.
Jenny becomes a carrier for alien microbes and her friends and family begin to morph into monsters. Jenny unknowingly brings back a virus from outer space that mutates the personalities, and then the bodies, of her friends and family.
Brad and Tuck tag along on Jenny's mission to a garbage dump asteroid.
Sheldon is recruited by "The Agency" to become a secret agent and spy on Jenny.
When Tuck sees the future, he believes he is invulnerable.
Jenny and the boys crash land on an island where historical figures come alive.
A robotic ventriloquist dummy that Wakeman once performed with returns to demand a bride.
Looking for a serious beau for Tammy, Letta's biker comes to Earth for a shotgun wedding to Brad.
When Jenny accidentally trashes Tremorton, the Skyway Patrol hands Wakeman the bill for the damages.
Letta's Biker Gang rearranges Jenny, turning her into a motorcycle.
Brit and Tiff help Vexus disguise herself as a teenager at Tremorton High, but Vexus gets carried away in her new kingdom.
Jenny humiliates a samurai by rescuing him and must help him regain his honor.
Jenny's sisters turn against Wakeman.
