The missile silo used for the episode's climactic scene was incomplete when the scene was filmed, as the crew did not have enough time or money left to complete the set. The crew built the incomplete silo on a sound stage around a completed spacecraft prop, and were able to digitally extend the set with computer generated interiors to give the impression of a much larger silo. Exterior shots of the silo building were also enhanced digitally, with various buildings and machinery created with computer generated imagery and composited into the exterior shots.