A launchpad accident leads to delayed missions and FBI background checks.

NASA preps a Jamestown relief mission, while Karen waits for news at the hospital.

Ed handles a trespasser. Ellen and Deke chart a new course without Mission Control.

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

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

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