One of the participants in a 2-year experiment on a mock lunar habitat leaves before the end of the experiment. Mark volunteers to join the team for the one remaining week.
He struggles to befriend the other participants and refuses to acknowledge his personal stresses. Insecure to share his emotions with the other participants.
After he stubbornly goes on a run and passes out, Mark is rescued by the other participants, with whom he finally connects.
With her father away, Erin attempts to throw a party but is disappointed when none of her invited guests show up.
She visits Maggie in prison, who tells her that her father is struggling and that he needs her support.
The First Lady of the United States designs new ostentatious uniforms for the Space Force, and F. Tony encourages her Chief of Staff to send them over the objections of Brad.
With the experiment over, Mark gets rid of the new uniforms and returns home. After he went home and helps Erin to clean the kitchen.