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

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

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

Ed’s reckless behavior at NASA shakes the foundation of the Baldwin family. Tracy attempts to readapt to life in space.

American astronauts and NASA leadership prepare for a new mission with unlikely partners. Ellen gets in touch with an old friend.

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

A training accident spurs a national debate about women astronauts.

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

NASA is in crisis as the Soviets land the first man on the moon in 1969, the beginning of an alternate history.

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

Ed and Kelly consider the possibility of reforging their relationship, but Kelly soon crash-lands on a planet in another universe with Isaac and Gordon.

The NCIS murder case of a retired Navy Lieutenant Commander forces Ducky to reveal his participation in a secret society that solves cold cases.

Don attempts to track down a friend, Joan tries to solve a problem with an account and an unlikely person sets up Peggy.

Don has to deal with issues between a TV comedian and his wife; Joan finds Don the perfect secretary.

The BAU hunts a stalker in San Diego who is targeting college students. Meanwhile, the team comes under Strauss’ scrutiny in the wake of the loss of Prentiss.

The BAU hunts a stalker in San Diego who is targeting college students. Meanwhile, the team comes under Strauss’ scrutiny in the wake of the loss of Prentiss.

In the third season finale, Allison’s life, along with the lives of her family, is uprooted as her psychic abilities are revealed to the public. Allison must now find a…

Dee gets involved with a famous local rapper who might be mentally challenged, and whose success inspires the rest of the gang to start a band.