While traveling Great Dark Nebula, the Conductor was taken away by a two-dimensional people called the Ghost Hoppers. Meanwhile, Tetsuro was temporary blinded by the triple Sun in the system. The train the proceeded to land on the ice planet Kilimanjaro, where the same Ghost Hoppers also kidnapped Maetel and Tetsuro. They, and the 999, became experimental subjects for the Ghost Hoppers. (thetvdb.com)