It’s Halloween Haunt-O-Rama in R-Fair City, and Hacker has a wicked treat up his sleeve: to keep the kids out of Cyberspace forever by crashing Motherboard’s portal system. But when Buzz and Delete make a mistake, the portal system crashes too late, and the kids and Digit are trapped in R-Fair City! Now, the kids must find enough energy to power Digit’s portal rebooter and keep the amusement park going. But with the celebration in full swing, can they find big and small ways to save enough energy? And can they ever get back to Earth again?

A disagreement drives a wedge between friends when Inez tells Creech her bike path should be shut down.

On his annual trip to visit Eugene, Digit finds out that poor conditions in Mermaidos have forced many of the fish from their home.

Motherboard invites the kids for a slumber party with Digit in Control Central.

Delete joins forces with the CyberSquad to build a giant windmill for the little town of Bottawa after Hacker steals its power source.

As the Three Pigs celebrate their new cottage with a housewarming party, Hacker and Wicked accidentally zap away Mount Evermore -- which had been protecting the cottage from direct sunlight.

Hacker enlists the help of CyberSquad to get back home.

Professor Bobson calls on citizen scientists to help when the trillers fail to show up for the Migration Celebration.

The kids promise to help Pearl spread the word about the water problem in Canalia, and they convince Canalians to change their water-wasting ways.