A new surface-to-Atlantis rail shuttle is opened by Princess Diana, with the Centurions in attendance. During its inaugural journey, the train comes under attack by Doc Terror's forces and the Centurions engage them in battle. During the fight, Diana's cousin Naro and the evil physicist Phisto escape from Atlantis' prison. Phisto then creates an artificial micro black hole which soon attracts the attention of Doc Terror. After the battle with Terror's borgs, Ace is sent to look for Naro and Phisto whereabouts, but is ambushed by Naro's henchmen and knocked unconscious, now completely at their mercy...

Science Lesson: Micro-technology by Crystal.