"Race to Space" is the second episode of the first season of the American period drama television series Masters of Sex.
While getting her children ready for school, Virginia Johnson (Lizzy Caplan) considers how she will tell William Masters (Michael Sheen) that she has declined his proposal that they have sex with each other for their study from the previous episode.
Bill moves the study to a brothel, with the help of Betty (Annaleigh Ashford), and compensates the participating prostitutes with double their regular salary.
At the brothel, Bill instructs the prostitutes on how the study will be conducted, but he is interrupted by police officers, who arrest him and the girls.
Meanwhile, Ethan sleeps with a nurse and tries to convince her to perform oral sex on him like Virginia did, but she is uncomfortable with it and he drives her home.
Virginia puts her son to bed, and he asks her to read the last issue of a Race to Space comic with him, but she has to work.
Club gave the episode a B+ grade, commenting "...the show is still wickedly funny and awkward and touching in ways that feel thrilling and unexpected.