[1][2][3][4] It was officially drafted by Yoshiyuki Tomino, the creator of Mobile Suit Gundam and planned by both Takeyuki Kanda (who also serves as its director) and Hiroyuki Hoshiyama.
In the far-flung future of 2058, hostile alien forces (collectively known as the "Astrogaters") attack the human colony at Clayad, the third planet of the Ypserlon system, which is located 43 light years away from Earth.
From him they learn that one of the children is actually an alien as well; their parents have been captured and taken to the Astrogater home planet Kukto's artificial satellite, Tuat.
After numerous battles with Astrogaters (or Kuktonians as they call themselves), and receiving some help from Earth military forces, they manage to reach Tuat.
After liberating the alien prisoners, the children learn that their parents have been moved planet side to Kukto, where they make an attempt to rescue them.
There was a video game adaptation,[5] also entitled Ginga Hyoryuu Vifam, released by Bandai for the MSX computer platform in 1984.