No Place to Hide (Lost in Space) were prodigies, and Don West was identified as a doctor of geology. The pilot did not include later series regulars Dr. Zachary Smith or the Robot, and featured no scary monsters. It was instead about the adventures of the Robinsons, a happy family. The cooperative, friendly family depicted in the pilot were somewhat less so in the series, and still more different from the dysfunctional space family depicted in the 1998 spin-off motion picture. The theme music for this pilot was taken from the 1951 film "The Day the Earth Stood Still". Nearly all of the footage from the pilot
Lost in Space job for its "Lost in Space" appearance, while space monster costumes would be reused on "Voyage" as sea monsters. The clear round plastic pen holder used as a control surface in the episode "The Derelict" turned up regularly throughout the show's entire run both as primary controls to activate alien machinery (or open doors or cages), and as background set dressing; some primary controls were seen used in episodes such as Season 1's "The Keeper (Parts 1 and 2)", "His Majesty Smith", and Season 3's "A Day At The Zoo", and "The Promised Planet". Spacecraft models, were also routinely re-used.