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.

Deke must recruit female astronauts after Russia lands a woman on the moon.

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.

Penelope suddenly finds herself back in the dating game after Schneider shows her how to use an online app for meeting people.

Bull helps a famous social media influencer, Sadie Washington, take her father to court to overturn his legal guardianship over her empire, which he was granted after the young mogul…

As Kevin stresses about the premiere of his play, he receives support from an unexpected source. Randall struggles under the pressure of both his work and ailing father. Rebecca and…

Supergirl and Imra have different ideas on how to stop the third Worldkiller, Pestilence. However, when both Alex and Winn are seriously injured by Pestilence, Supergirl and Imra team up…

Still reeling after learning about Lena’s secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the…

Myr’nn inadvertently causes psychic disturbances at the DEO; Supergirl must work with J’onn to contain the chaos; Mon-El begins training Kara in fighting techniques he’s learned in the future.

As Reign continues to terrorize the city, Supergirl teams up with Saturn Girl, and the two recruit Supergirl’s former enemies, Livewire and Psi, to form a team for a mission…

Someone tries to kill Morgan Edge and he barely survives. He accuses Lena of being behind the attempt and vows to destroy her. When Lena fears her hatred for Morgan…

The DEO captures a second Worldkiller, Purity. Supergirl and Alex use very different methods of interrogation with Purity in the hopes of finding out how to defeat Reign. However, Purity…

After a Marine is found murdered in Quantico hours after calling Gibbs to discuss a possible case, Bishop and McGee go undercover as a married couple to run surveillance on…

Barney freaks out when Marshall bequeaths a “slap bet” slap to Ted and Robin. Meanwhile, Lily’s estranged father shows up for Thanksgiving.