Hacker launches a virus that attacks Motherboard, and three Earth kids, Matt, Jackie, and Inez, are pulled into Cyberspace to save Dr. Marbles who has been kidnapped and stranded by the Hacker. The kids must use their Sqawkpads and teamwork to locate Dr. Marbles before sundown, when the cybersite reformats itself and turns inside-out.

Cybersquad must stop Hacker from activating his newest creation, Gigabyte, before the light of the midnight moon, or else Dr. Marbles mind will be transferred into the monster, and Hacker will learn about all of Motherboard's secrets. The kids and Digit know Hacker is in a castle on a spooky, Halloweenish site called Castleblanca. Unfortunately, Motherboard wasn't able to specify which castle he is in. The kids must survey the residents of Castleblanca to pinpoint the exact location where Dr. Marbles is being held captive.

Digit is lured to R-Fair City, a cybersite full of carnival games, where he is kidnapped by a disguised Hacker. The kids must find the unfair/crooked game to find Digit. Meanwhile, they learn about chance and how to spot an unfair chance of winning and losing. Along the way they meet Lucky, a cab driver, who offers them a chance to gain a free cab ride while they search for Digit. Digit is locked in a bird cage with Buzz and Delete as his guards.

For Real: "Bianca Flips Out" Bianca recalls trying to figure out which movie to buy tickets to, and if she was giving each a fair chance by flipping a coin.

Hacker is looking for an eternal power source, so he steals Solaria's Sunisphere. The Cybersquad has to get it back before the whole site freezes over.

For Real: "Regards to Broadway" Harry is trying to decide whether or not he should stay in a long line to buy theater tickets, or instead go see a movie.

Hacker participates in a land rush in which participants cannot build property bigger than Judge Trudy's land. Hacker's land is accused of being bigger than Trudy's, but they turns out to be the exact same size.

The kids fail to stop Hacker from stealing Pandora's box in Mount Olympus, so they must solve a riddle and complete challenges to satisfy Zeus and earn a second chance.

Hacker attempts to take power from the vault in Poddleville for himself by stealing the residents' power pods, much to the detriment of the community. Each power pod has a shape and a number from 1 to 12, and after Inez and Matt are imprisoned it becomes a race to solve the pattern and enter the vault.

Wicked casts a spell that erases the memories of the citizens, so that they forget how to count.

Dr. Marbles finds the encryptor chip in an ancient pyramid, but the Mummy who guards the pyramid finds Marbles. When the Cybersquad arrives, they must work their way through the chambers of the pyramid, find Dr. Marbles, and escape before a trap set by the Mummy seals them inside forever.

For Real: "Harry's Time Out" Harry talks about the clocks that can tell time.

Dr. Marbles builds Symmetria because of his passion of symmetry, but Hacker steals the symmetrizer and destroys Symmetria by splitting everything symmetrical in half. The Cybersquad has to figure out how to get the symmetrizer back from Hacker.

For Real: "This Takes the Cake" Harry starts a new job decorating cakes, and must maintain the symmetry of the icing.

The kids are assigned to steal a crystal that powers Hacker's gadgets, while distracting Hacker with a series of spa treatments.

Hacker decides he needs to change his luck from bad to good, so he hires Baskerville, a new henchman, to replace Buzz and Delete while the 10 good luck charms of Cyberspace ensure him good luck. The kids and Digit use logic to rescue the charms and stop Hacker.

Professor Archimedes has the encryptor chip, but has to activate the emergency defense system when Hacker arrives to steal it. He and his building shrink to 2D, and the kids and Digit have to put him back to 3D.

Motherboard is suddenly sickened by the green liquid because of Buzz and Delete. So it's up to Digit and the kids to heal her using blue liquid.

Hacker challenges the kids and Digit to a game show entitled "Find Those Gleamers!", Gleamers being lightning bugs that power ships such as the Grim Wreaker. The kids have to make their ship, the Grim Wreaker 2, take off before time expires.

Hacker steals the cyber slug Icky to destroy Aquari-yum, and the kids make a code to fool him.

Hacker steals all the water from Sensible Flats to buy up their land, and the kids must determine when this started and how to fix it.

After Hacker kidnaps the kids, he crash-lands in Shangri-La, where Master Pi challenges both groups to a special contest. The winner is free to come and go at will, while the loser has to stay in Shangri-La until they learn to solve the problems.

Hacker's invention to clone himself accidentally clones Delete instead, leading him to produce 3 clones every time he sneezes. The kids and Digit enlist the help of clone catcher Cy Clone.

After crashing into each other's ships and crash-landing, the kids and Hacker must deal with bartering with one another to repair their ships. Also, Buzz and Delete suddenly become brilliant, and an evil genie named Warren disobeys his mother's orders to stay inside his bottle.

The kids chase Hacker around a building consisting of floors that have both positive and negative numbers.

A Sky Wall is built to protect Happily Ever After from Hacker, but he plans to invade when Wicked's operatic voice will break it. One of the Three Little Pigs secretly aides Hacker after a promise of protection from the Big Bad Wolf, so the kids have to do double duty to expose him and stop Wicked from singing.

Hacker has a statue which broadcasts his voice 24/7. This leads Cybersites to surrender once they can no longer bear it.

Digit and the Cybersquad are tricked into going to a land of giants, with Motherboard unaware of their presence. Hacker leaves them stranded, and threatens to send another deadlier virus to Motherboard. The Cybersquad must escape and stop Motherboard from receiving Hacker's virus.

Hacker pollutes Cyberspace with dangerous cyber-static by tampering with four satellites designed to keep everything free from cyber-static cling.

Hacker kidnaps the Beast, a member of a famous band on Mount Olympus. Without him, the band can't perform their music properly and in sync, which causes the Cybersite to begin self-destructing. Its all up to the Cybersquad to reunite the band and save Mount Olympus.

Lady Lovelace comes up with a way to eliminate Hacker's virus, but Hacker traps her and Dr. Marbles in her time machine, and programs it to travel to the beginning of time.

For Real: "If the Shoe Fits" Bianca works in a shoe shop and picks the perfect shoe for the customers.

Hacker becomes the king of Radopolis, replacing King Dudicus. Then a competition begins and three players in Team Hacker compete against Matt, Jackie, and Inez in Team Motherboard. If Team Motherboard wins, King Dudicus reclaims his throne. If Team Hacker wins, Hacker becomes the king of Radopolis forever and the Cybersquad will never be able to return to Cyberspace. A later amendment to the bargain is that if Team Hacker wins, Inez will have to become one of Hacker's cheerleaders.

Thanks to one of Wicked's spells, Motherboard starts turning all cybersites mean and green. Digit gets the antidote but it breaks, and there isn't another one available to break the spell, so the kids must figure out how to make the antidote before all cybersites turn bad. Meanwhile, Hacker has a romantic encounter with Wicked.

Hacker starts an election campaign to become the new ruler of Cyberspace, planning to replace Motherboard. He also appears to turn over a new leaf, doing good deeds all around Cyberspace to gain public favor for votes. The Cybersquad must prove that Hacker is lying about being good before the election is over.

For Real: "Harry Makes a Mess" Harry buys a Sleazy-Off to clean his shirt but it doesn't work.

Ivanca the Invincible has a treasure map that Dr. Marbles mails to Motherboard's "buddy list." However, the virus also causes her to mail it to her "baddy list," which gives Hacker the map. Meanwhile, Digit is on an undercover mission for Motherboard, going to Hacker pretending to have reverted to the dark side, into thinking he's turned evil again, to stall him long enough so the kids can find the treasure first.

While Jackie freaks out over what to get her mother for Mother's Day, Hacker wrecks the Mother's Day festival in Cyberspace by interfering with a train shipment of special flowers. Jackie ultimately gets one such flower for her mother.

Hacker steals Pyramida's Eye of Rom from its pyramid, which he plans to use against Motherboard. Because of this theft, when the pyramid's shadow hits the Nile River, the site will crash.

For Real: "Bianca's Undoing" Bianca imagines to be a secret agent, start to do the steps and repeat in reverse, but soon triggers the alarm.

Hacker reprograms trapeze artist Glowla's robotic whale partner, Spout, into going rogue to destroy R-Fair City.

Hacker steals the Golden Droplet of Shangri-La, which doubles upon being removed from its pot, and doubles forever. He also kidnaps Master Pi for insurance.

For Real: "Harry Goes Against the Grain" Harry is playing chess with a boy he's babysitting, and the boy tells him “The Legend of the Grain of Rice.”

The Cybrary, owned and operated by Ms. Fileshare, has a bug problem, so she hires an exterminator named the Vermin Vexor (Hacker in disguise) to help her with the problem. Hacker instead adds more bugs so all references of Motherboard get switched to himself, and he alters two bar graphs to hide the truth.

For Real: "When Harry Meets Bianca" Harry and Bianca both get the same job in a movie theater.

Wicked poses as a princess who had announced to get married, and her groom is Hacker. Sam Vander Rom and his co-host plan to air the wedding on cyberwide TV, while the kids look for the real prince and princess.

In Poddleville, Hacker gets robbed and frames magician Slythe O'Hand and his dog Presto for it.

Digit and the kids compete against Hacker on the popular cooking game show "Fearless Chef."

On Halloween, Hacker invades Motherboard Control Central with a toy frog.

Someone has stolen the legendary cyber beast Choocroca from cyberspace EcoHaven.

King Dudicus accidentally uncovers the long-lost "Totally Rad Ring of Radopolis," which grants whoever wears it on their head their hearts desires. The citizens suggest putting it in a safe place where nobody can use it for anything, but Hacker steals it and uses it to attack Motherboard.

Hacker's insulting letters to Mr. Zero cause him to leave Gollywood, leading all zeros on signs to disappear and further chaos to ensure. However, contrary to what the people think, their main central bank still has all nine million snelfus, which Hacker plans to use to finance all his conquering quests.

Hacker doesn't know he is allergic to magnetite, which he uses to plan to erase Motherboard forever. Meanwhile, Hacker keeps a bunch of Scritter hostage, and he subsequently captures Digit.

Tikiville crowns its new monarchs with a race, which Creech, once part of a royal family, plans to win. Hacker also enters the race, planning to use the crown to turn Tikiville's giant statues into an army if he wins.

After the prince of crabs takes a dare and becomes dishonest after falling in the Abyss, the kids and Digit must find the Grapes of Plath to restore his ability to tell the truth, located in the Fountain of Truth. Unfortunately, Hacker is pursuing the Grapes as well. Because he thought Motherboard said "Fountain of Youth", and assumes the grapes can and will fix his chin problem.

Hacker tries to restore his giant robot, Gigabyte, by using the rays of Jimaya's sun. Delete is excited, but Buzz becomes jealous.

The Cybrary is under attack again, and the kids have to use logic and elimination processes to stop Hacker from entering Motherboard's vault.

The kids win the encryptor chip in an auction after saving enough money to buy it, but Hacker infected it and subsequently made himself the ruler of Cyberspace. After saving Dr. Marbles, the kids help him save Motherboard by having to reboot her, destroying the encryptor chip in the process. Meanwhile, Hacker breaks up with Wicked upon discovering she spent all 10 million snelfus on clothes and merchandise.

For Real (Part 1): "Harry Saves the Day" Harry needs to save to money to go to Mexico.

Digit and the kids help Shari of Frogsnorts bake the Cosmic Crumpets. Hacker then attempts to use the magical Cosmic Crumpets to steal the powers of the scorcerers of Frogsnorts and become the most powerful magician in Cyberspace. When Hacker steals the sorcerers' powers, the Cybersquad helps Shari restore the magicians' powers.

Hacker tries to destroy the festivities during Cyberspace's favorite holiday, Starlight Night (a mix of Christmas and New Year's Eve in the same day).

The Cybersquad helps Sharri Spotter make a film about Frogsnorts while staying within a budget, but Hacker keeps trying to run the up budget by putting himself in the film.

Hacker kidnaps Icky to find a power source to power up his new invention so he can use it to rule over Cyberspace again.

Hacker's secret plan to take over Cyberworld by using the electric eel's energy continues. The missing piece of the puzzle is the Prism of Penguia. Since Emperor Penguia can't remember where he hid the prism, everybody in Penguia has to shed tears until it is found. The Cybersquad & Fluff must face several obstacles, including a booby trap, to "angle" their way out so that nobody no longer has to shed tears.

Slider's father owes Hacker a debt, and if they don't pay up in time, Hacker will steal and take over his father's garage.

Hacker's new invention is revealed, and is ready to create chaos.

Hacker plans to use statues of himself to cause a power outage everywhere.

Motherboard's memory integrator has been stolen, so Digit and the Cybersquad need to find out what it looks like and who stole it.

Slider gets kidnapped by Hacker and gets brings him to Tick Tockia. The Cybersquad must save their friend from the Hacker.

Wicked builds some Broom and stated that it's a Cybersquad Seal of Approval, even though they didn't even test them. Jackie, Matt and Inez test out the brooms to see if they are faster.

When Hacker steals the legendary Egg of Benedicta, the kids need to get the egg back from Hacker.

The annual "Halloween Howl" bash in Castleblanca promises to be spooktacular… until Hacker takes over the Mayor's Castle and brings its seven stone gargoyles to life. Obeying Hacker's every command, the gargoyles capture the Mayor and imprison him in the dungeon. To gain control of the creepy creatures, the Cybersquad must figure out how to use division to evenly split up bunches of garlic and rock candy. But can they do it in time to rescue the Mayor and save The Halloween Howl? Meanwhile, Inez and Jackie are having a problem with their friendship after a misunderstanding.

Buzz opens up a new doughnut shop in Radopolis. Hacker's magnetite confetti he collects is large enough to remove the memory of every single citizen of Radopolis and send them to sleep.The Cybersquad needs to design a confetti collector so they can spoil Hacker & save Radopolis before it's too late when he dominates Radopolis and renames it Hackerville.

The Wicked Witch of Happily-Ever-Afterville turns Digit into her husband. Wanda (guest star Danica Mckellar), enlists the CyberSquad on a mission to Terra Swampa to rescue Digit. But first, they need to design an invention to help them get across the swamp.

When Hacker takes all the Ooze from EcoHaven for himself, Inez, Jackie, Matt, Digit and Wigit must find a way to shoo Hacker away before the EcoHaven animals lose their energy.

Delete is having a bad day. But things appear to brighten up when Zanko, a fairy borgfather, comes to grant Delete 9 wishes. Due to Delete's wish about bunnies, almost everybody in Cyberspace becomes bunnies. The only way to turn everyone back into themselves is for the Cybersquad to save Zanko's ladle and for delete to sacrifice his final wish.

Hacker kidnaps Jackie atop Mount Wayupthere and the rest of the Cybersquad must rescue her after meeting a Parallini named Teeny Weeny. In their search for the elusive Diamond Joe - the mysterious figure who holds the secret to Jackie's release.

Digit is malfunctioning, Motherboard sends the Cybersquad to get his Synchronium crystal and fix him.

Jackie, Inez and Digit shrink Matt so he can get inside Hacker so he can change back into his good guy form.

When Hacker manages to get his NIC card back, the Cybersquad must get it back and dispose it before Hacker is able to use his Transformatron again.

When the Cybersquad returns home from a meeting, Motherboard's portal glitches making them stuck in the vortex. Digit and Wicked work together to find the UVO (Universal Vortex Opener) before the Cybersquad permanently dematerializes!

Hacker tries to ruin Digit's birthday party, though Digit thinks it's actually for Judge Trudy (since that was how the secret was kept from him).

The Cybersquad must figure out what is causing kelp from Mega Bay to rise to the top. Meanwhile, Hacker looks make some profit by putting on a show for Cyberspace to see, after watching a viral video on CyberTube, a Cyberspace version of YouTube. The kids must free the sea otters before the whole kelp forest becomes destroyed by sea urchins.

Hacker has challenged Slider to a skate-off. But suddenly, the power to the brand new stadium goes out. The Cybersquad must find a way to harness solar energy, store it, and makes sure it lasts through the game. However, someone keeps sabotaging their plans. The show must go on!

The team battles a giant garbage heap in Perfectomundo, which threatens to break through the cybersite dome; Hacker seeks to grow an army of monster plants to take over the cyberworld.

Hacker wishes to build Hackerspace by drilling on Ecotopia. He captured an aged Doctor Marbles and stole his journal to help him locate the Reformat Button. In searching for the button, Buzz and Delete capture Ollie's mom Abby, and accidentally drill into the inner slime core. Hacker locks Dr. Marbles and Abby away while he recalculates the location of the button. Motherboard sends the Cybersquad into Ecotopia to investigate where the slime came from, and what they can do to help. They soon realize that many of the animals of the Cybersite have lost their homes due to the slime destroying most of the Preserve. To fix this, they must relocate the animals and install a new preserve that allows them to live comfortably. Using an ark, they are able to bring the animals to the new preserve, but by just narrowly escaping a whirlpool. Soon after, the Cybersquad and Ollie notice that the orangutans are in the wrong portion of the preserve. To figure out why, Inez and Ollie return to the old preserve and examine the wildlife. But to do so, Inez must overcome her fear of bats and Ollie must overcome his fear of heights. If that wasn't enough, they overhear Hacker looking for the button and realize he has caused the inner slime core to erupt. Ollie spots his mother with Hacker, so he desperately wants to save her. The Cybersquad and Ollie formulate a plan that succeeds in rescuing Dr. Marbles and Abby, while installing a lock on the Reformat Button, thus ejecting Hacker into Cyberspace. The movie finishes with Inez and Ollie enjoying a sandwich high up in a tree.

For Real: Harry shows 100 favorite moments of the series in honor of the 100th episode of Cyberchase.

Note: This is an hour-long two-part special.

The CyberSquad awaits the return of Kacy's Comet, but a glaring light in the sky blocks out all the stars.