Mark and Erin go to the prison to visit Maggie. Mark spend time with Maggie and leaves Erin by the helicopter, where she begins speaking with some of the inmates about her mother.
Much to Mark's disappointment, Maggie tells him that she would like for them to have an open marriage, as she is unsatisfied by the relatively few times that they can see each other.
After the visit is done, Mark flies home but leaves Erin at the prison. Chan drives Angela to Denver to get LASIK, and they form a friendship.
Adrian, F. Tony, and Brad search for candidates to work on the upcoming lunar habitat but ultimately select the badly inexperienced Eddie and Pella.