A short-lived cartoon series based on the characters debuted in 1993. In it, Empress Opal of Mythrandir splits the legendary Great Crystal into six pieces to keep it out of Zok's hands. Zok manages to capture one piece, but the other five bond with the future Stone Protectors, spiriting them away to Mythrandir to help Opal upset Zok's schemes and spread a sentiment of peace and freedom with their music. (wikipedia)