The Pitch Dark Sisters
The 999 stops at the Pitch Dark Planet, where all light is instantly absorbed. A while after Maetel leaves the train to "attend to private business", Tetsuro is beckoned outside by a figure at his window, who proves to be Miru, a daughter of the planet's ruler. She and her father tell him that Maetel has been kidnapped by Miru's sister Lelan, a deranged but brilliant scientist who plans to use Maetel's brain to launch an artificial sun into orbit, and that Maetel will die unless Tetsuro can infiltrate Lelan's base and kill her. Further, the new sun will doom most of the life on their world, which has never had light in its entire natural history. Tetsuro goes back for his gun, but is taken prisoner by Lelan the instant he steps off the train. His efforts to escape prove futile and Lelan launches the sun.
Aired 31/01/1980EP 63 - The Pitch Dark Sisters

Galaxy Express 999
After witnessing the death of his mother and being left for dead at the hands of Count Mecha, ten-year old Tetsuro Hoshino is awakened by a mysterious woman, Maetal. In exchange for only his company, Maetal offers him the ride of his life on the Galaxy Express 999. It is said that those who travel aboard the legendary train to the end of the line can receive a free mechanical body and with it, immortality.
Impoverished and alone, Tetsuro leaps at the opportunity and joins Maetal on a quest that will span the cosmos. As the Galaxy Express 999 makes its way across our solar system and beyond, Tetsuro is drawn deeper into a dangerous universe where peril lurks at every stop.
(Source: Discotek)