After a rocket malfunctions during a test, the Mercury 7 head home for Christmas. Shepard’s holidays are fraught, as the arrival of his parents coincides with the adoption of Louise’s…

JFK sends a science committee to Cape Canaveral to assess the validity of the space program. Glenn, burning from the results of the peer vote, drafts letters to politicians complaining…

After Shepard’s dramatic voyage to space, he feels underwhelmed and restless. Heeding Glenn’s advice, Shepard attempts to quell his ambition with gratitude for his wife and children. While Shepard’s marriage…

A group on Mars takes drastic measures. Margo grapples with a new assignment.

A discovery sends teams across Earth and Mars scrambling for answers.

A secret brings Elizabeth and Paige together. Back in Moscow, Oleg’s own secrets put him under KGB suspicion and a new twist in the Morozov operation creates an opportunity that…

Philip and Elizabeth are thrown off balance when things with Tuan take an unexpected turn. Henry makes a startling proposition and Stan has a disturbing encounter with Frank Gaad’s widow.

As Philip and Elizabeth grapple with a momentous decision, Tuan takes matters into his own hands in the Morozov operation. Back in Russia, Oleg’s investigation collides with the realities of…