Tensions between the U.S. and the Soviet Union reach an all-time high on the moon, throwing multiple missions into jeopardy. ...

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. ...

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. ...

With a little help from Molly, Ed plans a career change - as his old Jamestown crewmates Gordo and Danielle struggle. ...

A dispute on the moon prompts NASA officials to consider arming astronauts. Ed's past comes back to haunt him. ...

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

Riley tells a lie so she and Maya can attend a party and must deal with the guilt of sneaking around her parents. ...

Cam and his family faces a great loss due to a tragic car accident. ...

Danny and Jo have difficulty determining if someone is trying to help or hurt them, especially after a serious cover-up; Danny inherits a large amount of money, which com ...