The spaceship Orbitor had left Earth and was on a routine mission to Jupiter. Trouble erupted when one of the crew members was found beaten unconscious and the ship's transmitter had been tampered with. Orbitor was forced to dock at a space station for repairs.
It was clear to co-pilot Louis Richards that there was a sabotaging traitor on board, but it was too late.
Orbitor had been brought to the station for a reason, and it was up to Richards to stop a powerful unknown force from using Orbitor as part of a master plan to dominate the solar system!