The Flying Kuros: Part Two
Tetsuro meets the robot owner of the robot cat, Neko. Meanwhile all the robot cats on the planet stage a rebellion. Armys of robot cats fill the skies. The army tries to fight them off but is ineffective against their small size and sheer numbers. Flying Kuro, who is just a flying cat and not a robot cat is caught in the crossfire, but is rescued by the robot cat from before. The army then takes Flying Kuro hostage. Tetsuro and Neko have a disagreement over the value of life, and the cats stop rebelling. However then all the cat robots are gassed to death. Neko is arrested but then she blows up a truck and is shot to death. Flying Kuro then walks away into space and leaves the planet behind, Tetsuro and Maetel get back on the 999 and do the same.
Aired 27/11/1980EP 97 - The Flying Kuros: Part Two

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)