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.

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.

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.

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).