Director von Braun opposes President Nixon's directive, with dire consequences.

Deke must recruit female astronauts after Russia lands a woman on the moon.

A training accident spurs a national debate about women astronauts.

Nearly a decade later, technology and lunar exploration have taken huge strides—but a solar storm threatens the astronauts on Jamestown.

Margo must lead a seemingly impossible mission. Danielle wants to return to the moon. Gordo grapples with life on Earth.

Gordo returns to space. Molly faces an upsetting new reality. Aleida confronts her first major hurdle at work.

Nearly 10 years have passed. Danielle and Ed attend a celebration, where things take a terrifying turn.

A commercial spaceflight company makes an announcement. The choice over who'll command the Mars mission leads to a shift in personnel.

As NASA scrambles to prepare for the launch to Mars, Margo is confronted with a harsh personal reality.

A joint mission brings about conflict between crew members.

The Martian crew debates how to save the life of one of their own.