*Wishing to decode stolen Harbinger Foundation disks, the kids contact a hacker named Ax. When Pete mind-probes the obnoxious hacker, he unleashes Ax's psionic command of computers. The disks contain information on Spider Alien base sites, which they use to steal an alien spacecraft. Flying it to the alien moonbase, they soon regret making the trip when they are captured by the armored Rexo and his Spider Alien allies. *Source: Back of card.