Brains is bored. Fred helps her find something new to do, and she falls in love with tennis While she’s away, Fred opens a box of what he thinks are toys, but are actually a real army of small alien ships, which fly around attacking the lab. Brains combats them in a tennis racquet battle to the finish.
Friday finds a stray puppy, but its Fred and Brains who fall in love with it, paying more attention to the pooch than to him. When he starts to suspect the puppy of being more evil than he seems, they don’t believe him. Indeed, the puppy turns out to be a brilliant alien mastermind, intent on global domination.
Wally K’s bullying moves Fred to challenge him to a fight, secretly confident that Friday can become special fighting gloves for him. When Friday loses his memory though, Fred tries to cancel the fight, but can’t. Luckily, an attack by the cute aliens, the Cuddlemuffins take Wally down, and Fred gets the credit.
When Fred’s parents leave him home alone, he tries to throw the coolest party in history—until Principal Darling checks up on him. Friday replicates Fred’s mom, and Mombot puts the Principal at ease, before shortcircuiting, and making the party extremely uncool.
The Super Commander orders Brains to host a special member of the Protectors, Agent Alpha Onea dashing agent Brains admires—who turns out to be both a phony, a problem, and…and actor
Fred is not prepared to enter the school science fair, but at the last minute, he transforms Friday into a glove that dispenses soda from the fingers. He wins Soon he learns though that the fair was an effort to find someone with small enough hands to blast into space and rescue the stranded Astronaut, and Brains’ hero, Caribou Caruthers.
Fred wishes he could look older, so Nora would like him as much as her pop star crush “Romeo Romero.” When he learns about the hair growth bugs that made Brains grow a beard he purposely uses them on himself. Now, whenever Friday shaves it off their beards, they grow back longer
Fred pushes Brains to try to get more girlfriends, and fit in more at school. Since other girls are all reading the “Ghostlight” books, Brains tries it, and gets hooked. Fred doesn’t get the books girly appeal, and worries that he’s going to lose Brains to her new girly romanceloving crowd.
Fred insists Brains let him watch over her lab while she visits her father’s Space Station. She agrees under one rule: “Don’t press the red button.” The entire time she’s gone, he can think of nothing else.
Fred impresses his pals when he enters their favorite Robot Battle TV show using Friday as his robot of course. When Friday demolishes the fan favorite however, instead of cheering Fred, they mourn “Speedy” the crushed bot. Brains rebuilds Speedy and her own girl robot, “Little Miss Missile Hands.”
When her Fake Robot Parents visit her school, Brains real Dad orders her to take the robots out more and let them interact with people…which is really embarrassing.
Rain keeps Fred and his buddies stuck inside, until Friday secretly clears the rain clouds, earning Fred the name, “Weather boy.” Brains warns Fred never to try that again, though Nora begs him to make her beach party have a sunny day. Fred’s tinkering attracts a strange gas cloud, which they must freeze, causing snow on the beach.
Fred has written Nora dozens of “love emails” but never sent them—until Sir Percival accidentally hit the “Send” button. To prevent complete embarrassment, Fred hatches a caper to keep Nora away from her computer long enough for Brains to hack into it.
Brain’s alter ego Braianna has a reputation as a clumsy C student. When her math teacher pushes her to it, she blurts out the correct answer to an impossible equation, leading Mr. Fractal to assume she must be cheating. He demands a meeting with her parents, and her Fake Robot Parents nearly blow her cover.
Fred bargains with the girls basketball team to let Brains join the team. In return, he agrees to be team’s bunny mascot, commanding Friday into a pair of superjumping shoes. His get up proves handy when Brains needs his help capturing a massive space chicken.
Fred and friends don’t have a place to play “Laser Ball.” An eccentric environmentalist inspires Fred to build his own island out of discarded plastic water bottles. When Friday is sent to collect a quarter million of them, he turns into a plastic water bottle menace
Brains does not understand the appeal of Fred’s latest passion: Monster Mud Trucking. Friday makes his muddy dream a reality, never imagining they would awaken the evil Dirt Demons angry about how Humans treat them like…dirt Brains saves all the boys from being mud statues by learning to love mud trucking.
Fred and Sir Percival are swapping practical jokes against each other. When Fred meets a hyperintelligent mouse that Brains has, he “borrows” him to pull one last great prank. When the mouse goes missing, Brains informs them that no one else can defend them against the beastly Elephantoids
Fred should not have played with his Dad’s trophy soccer ball, so when it falls into the sewer drain, Fred and Friday go find it. They encounter an ancient race of “sewer bears” who make Fred their king, before making him their dinner.
Brains must protect a space princess who has the ability to bend people to her will using her scent. While her political enemies try to steal her away, she tries to prove herself worthy of being a Protector.
To make herself more likable to the other girls at school, Fred arranges for Braianna to throw a “Pet Party,” with Friday posing as her doggy.
Fred and Sir Percival get taken for the ride of their lives when evil aliens disguise their space ship as an amusement park ride. Sir Percival thinks it’s an intense ride, but Fred realizes—it’s real Agent Brains saves the day.
When Fred learns that Mort is making a movie for a school project starring Nora, Fred tries to make his own better movie. As a cheap special effect, Fred tries to get his old chums The Dirt Demons to appear in the film. They agree, but get insulted when they realize they’re supposed to be the bad guys
After Fred clumsily insults Nora, he commands Friday to do his talking for him, transforming into a neck piece Fred wears, imitating his voice, and giving him a shock when he tries to speak for himself. Friday’s bold personality rehabilitates Fred’s reputation, until he short circuits and starts insulting everyone.
Fred’s Dad wants to spend more time with him. He becomes the new gym coach at school. Unfortunately, he is so tough on the kids Fred has to use Friday to make fake notes from their parents, until Fred and Brains are the only ones left doing the tough workout.
An alien slug monster that inhabits it’s victims has possessed some girl at school, but Brains doesn’t know which one. She awkwardly throws her first slumber party to figure it out. Simone, the new girl Fred has a crush on, carries the alien, and attracts Fred and Sir Percival to sap their human energy
Brains brilliance at mathematics helps her to win a prize, but also the jealousy of Egghead, a brainy space villain.
When all the teachers at school are mysteriously absent one day, Fred initially cheerleads his classmates to celebrate. Brains figures out they have been taken away by the potatobrained Potatoids, and she and Fred go off to rescue them.
To get some alone time with the beautiful Nora, Fred must jump through multiple hoops, including saving the town’s history book from a fire.
When Friday transforms into Braianna to cover for her absence at school, it gives her a chance to observe how people react to her.
Brains is informed that Friday is being recalled, and replaced by a superior shapeshifting robot weapon. Fred convinces Brains to help retrieve Friday from a futuristic junk yard, because Friday is also a friend. Meanwhile the new robot tries to hunt them down and stop them.
Fred grows so afraid of playing soccer goalie, he trades places with Brains, ending up with the more dangerous job refereeing the Protector’s game.
Braianna’s Fake Robot Parents go on love overdrive, hoarding every book and rose in town, just as they are in demand for the romantic holiday.
Everyone is reading a popular blog gossiping about people at school. When the blog post Brains pictures of aliens, she risks having her secret identity exposed.
Fred thinks Brains is acting strangely, and decides it’s because she has a secret crush on his best friend Sir Percival. Fred secretly spies on them to learn their secret, only to embarrass himself in the process.
When Fred’s mom’s vacuum breaks, Brains repairs and “improves” it, adding artificial intelligence, which turns him into a talking best friend for Friday. Dusty brings other appliances to life, and they try to lure Friday away from his human friends
Nora is so impressed with Eddie’s philanthropic music concert, Fred uses Friday to trick Eddie into letting him headline the show.
To prove to Brains he can go one day without Friday, Fred agrees to a day without him, picking a day he ends up desperately needing him.
Fred can’t believe that Brains is afraid of anything, let alone little tiny squirrels. Every year their town is overrun with hundreds of migrating squirrels Together they struggle to rid the town of squirrels.
Mort snaps a picture of Brains fighting Aphrodite, a glamorous alien woman. After Mr. Fractal confiscates Mort’s camera phone, Mort and Fred compete to get it back.
Fred relies on his lucky dice for every decision. At a theme park, he loses them, and has trouble coping without them. Along the way he also loses Friday Fred has to rely on more than luck to get them both back.
With the school’s formal dance coming up, Fred insists Friday should be able to do something to find him a love potion so Nora will be attracted to him. Brains catches Friday trying to keep up the charade.
Fred gives Thomas the chance to feel like his idol, a comic book hero in a flying metal suit.
It is Fridays “Date of Manufacture” birthday, and Fred tries to make it great. Brains has an emergency when her old, and difficulttocontrol pet comes to find her. Gelatina is a gooey blob who can morph into any disguise.
All of Braianna’s enemies are brought together by the villainous Egghead. Brains is trying to get promoted, even though a higher title would mean she’d have to move away.
Fred thinks that if Brains’ design is chosen for building the class float in the school parade, she will be more popular. Her design wins, but is too complicated to build, and Fred takes the blame. On parade day, Friday transforms into her design—a working Destroyer that wins “Best Special Effects.’
Corky discovers an alien frog who transforms into a handsome boy who is in love with her.
Fred Dad Simon is excited about his new invention, a disgusting drink with “the power of 500 carrots” Fred fakes drinking it, and commands Friday into a phony weightlifting machine, which convinces kids at school that the drink works. Instead, the drink turns kids skin orange, making them very appetizing to Brains’ latest foe, the Carniverous Carniborgs
Brains contracts a virus that turns her into a werewolf. Then Brains gives Fred the same disease. Brains takes her medicine, but Fred doesn’t want to, causing the symptoms to make Fred ruin Nora’s fashion show.
Braianna is accused of a crime she didn’t commit, stealing the boots of a legendary soccer star.
On a school ski trip, Fred tries to impress Nora by riding Friday transformed into a trick snow board. Still, he’s no match for the naturallytalented Eddie, who ends up selflessly rescuing Fred from a snow drift. The one who really ends up impressing Nora, is Brains.