Digit disappears while visiting his friends the Scritters, so Motherboard sends Matt, Jackie and Inez to investigate. They discover that Hacker has found a supply of Magnetite, and will use it to fill up a rocket capable of erasing all of Motherboard's memory disks. Can the kids stop Hacker before he collects a hundred percent of the Magnetite he needs to launch the rocket, or will Motherboard be shut down once and for all?