Ed and the crew change Apollo 15’s landing site after lunar ice is detected.

A crisis in space puts the Apollo 24 and 25 crews in peril.

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

The rivalry between American astronauts and Soviet cosmonauts intensifies as last-minute changes impact the Pathfinder mission plan.

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

Plans to leave Mars are complicated by an unforeseen issue.

New Helios employees arrive on Mars as NASA undergoes major changes.

Plans are made with interplanetary ramifications. Ed begins working with an unexpected partner.

Things start to go awry just as an important mission approaches a critical juncture.