It's Halloween in Castleblanca. Hacker has taken over the mayor's castle for a dinner with Erica Ram, but the mayor returns and wants Hacker out. Hacker imprisons the mayor, and the kids and Digit must master division to rescue him.
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 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.
Hacker gets a boost from the liquid ooze that feeds the animals of EcoHaven; he drains the pond and take the ooze home; the CyberSquad members must find a way to get inside; inspired by the Greek myth, they build a “Trojan Ducky.”
Delete is having a bad day; he discovers that he has a fairy-borg father named Zanko, who appears and grants him nine wishes; Zanko and Matt get stuck on a ledge inside hazardous Statico Chasm; Inez and Jackie try to rescue them.
The gang tries to rescue Jackie from a mountaintop and needs to understand the principles of parallelograms to do so.
The gang tries to rescue a digit that's lost in a cavern, and must use crystal geometry to succeed.
Matt gets shrunk to go inside Hacker to insert a new memory chip, but the plan hits a snag and his pals must program a robot to rescue him.
In order to reverse the powers of Hacker's transformatron machine, the gang must discover how to pinpoint an object using two straight lines.
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!