Kidnapped

With their father gone, Fatty and George move in with Kath and Bert. The crystal takes control of Fatty's dreams making him scetch out the plans for his father's time-travel module. The mess he generates while doing so gets the kids in trouble with Bert but the time-stopping power of the crystal allows them to set things right. Meanwhile, Izzy is abducted by Nancy and her brother in an attempt to learn of the crystal's whereabouts. The kids find a hideout where they can keep the plans and the crystal safe.