 The series is effectively divided into two separate shows with the  first season set on Earth and the second set aboard a deep space  exploration vessel. The first season villains the Draconians are  never seen in the second season and neither is Bucks mentor Dr.  Huer. The shift from a permanent Earth setting to a spacecraft plot  was an effort to boast ratings and provide for more diverse  episodes. The shift had exactly the opposite effect, with many fans  seeing the "Space Buck Rogers" a disappointment from the "Earth Buck  Rogers".