There are 3100 more miles to New Pacificia at the end of this episode.
Dr. Heller's mother had done great things as a member of the governing council of the space stations.
It has been 49 days since they crashed on the planet.
Reilly: Who know's, when you do (tell them where the planet is), maybe the council will name an entire continent after your family.
Dr. Heller: Yeah, maybe they'll call it hell.
The title of this episode is an allusion to the 1994 movie titled, The Enemy Within. It starred Forest Whitaker.