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

Ed, Gordo, and Danielle struggle with an extended Jamestown mission.

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

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

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