The Station 19 crew trade in their turnouts for tuxes and gowns as they attend the Firefighters Ball, but when disaster strikes, they jump into action to save the day.
The Martian crew debates how to save the life of one of their own.
A joint mission brings about conflict between crew members.
Gordo returns to space. Molly faces an upsetting new reality. Aleida confronts her first major hurdle at work.
Ellen is challenged by her new role. Margo’s allegiances are put to the test. Karen explores new opportunities—personally and professionally.
American astronauts and NASA leadership prepare for a new mission with unlikely partners. Ellen gets in touch with an old friend.
Ed’s reckless behavior at NASA shakes the foundation of the Baldwin family. Tracy attempts to readapt to life in space.
