The Martian crew debates how to save the life of one of their own.
A joint mission brings about conflict between crew members.
The astronauts move quickly to build Martian bases.
The race to land first on Mars brings together unexpected allies.
As NASA scrambles to prepare for the launch to Mars, Margo is confronted with a harsh personal reality.
Jude makes a difficult decision, while Franklin and Irene reflect on recent events. Stella’s mission brings her to the Yorks’ doorstep.
Irene, Jude and Denise go on a road trip to find Gabriel, while Franklin and Byron take a journey of their own. Stella and Toni get to know Farnsworth.
Tensions between the U.S. and the Soviet Union reach an all-time high on the moon, throwing multiple missions into jeopardy. Season finale.
The rivalry between American astronauts and Soviet cosmonauts intensifies as last-minute changes impact the Pathfinder mission plan.
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.
