The Great Planet is dying because its Queen has grown old and lost her power, and if it falls, the whole universe will die with it. Princess Aurora of the Moon offers to take the Queen's place, which means setting out on a perilous voyage to reach it. She does not go alone. Three powerful cyborgs escort her as friends and protectors: Jan Kogo, Sa Jogo, and Don Hakka. Spaceketeers is a science fiction adventure with mecha elements, running for seventy-three episodes as the princess and her guardians face the dangers of the road with the fate of everything riding on her journey.