Mystery Inc. face their most dangerous case yet: Cyber space! While trying to stop a Phantom Virus, Mystery, Inc gets zapped into cyber-space and must complete an old friend's game and find out who created the Virus at the same time. The fourth Scooby-Doo direct-to-video movie, it is recognized as the last "official" Hanna-Barbera Cartoons production, as Warner Bros. had fully absorbed Hanna-Barbera after the passing of co-founder, William Hanna, who receives a memorial dedication. Jim Stenstrum directs from the script by Mark Turosz. Original series producers/directors William Hanna & Joesph Barbera and Jean MacCurdy were executive producers, and Davis Doi was supervising producer. Featuring the 'Scooby-Doo, Where Are You' theme song performed by Cindy, Kate & Fred of the B-52's.