10 Best Episodes of Extant

An astronaut returns home from a year long solo mission in space. She tries to reconnect with her husband and son in their everyday life. Her experiences in space and home lead to events that ultimately will change the course of human history.

Written by Sophie and last updated on jan 12, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

Extant - S2E10

#15 - Don't Shoot the Messenger (Season 2 - Episode 10)

Molly has a vision she can't shake following a near-death experience. Also: Shepherd's loyalty to the Global Space Commission is questioned.

The episode was rated 7.62 from 916 votes.

Extant - S2E8

#14 - Arms and the Humanich (Season 2 - Episode 8)


Molly tries to save her son following a raid on the hybrid compound and JD tries to rescue his daughter from Shepherd. Elsewhere, Lucy becomes a bigger threat to humans.

The episode was rated 7.64 from 943 votes.

Extant - S2E5

#13 - The New Frontier (Season 2 - Episode 5)

Molly discovers Ethan is alive and sets out to get her son back. Also, suspicions about John’s death cause JD to investigate Julie’s potential involvement.

The episode was rated 7.64 from 950 votes.

Extant - S1E8

#12 - Incursion (Season 1 - Episode 8)


When Molly learns that her baby is alive, she sets out with Kern and Kryger to devise a plan to intercept the baby before Sparks and Yasumoto can relocate him. Meanwhile, John struggles to keep up with Ethan’s rapid development.

The episode was rated 7.66 from 762 votes.

Extant - S1E4

#11 - Shelter (Season 1 - Episode 4)

After Sparks attempts to quarantine Molly, she and her family seek refuge on a remote island with her estranged father, Quinn. When the agency closes in on their whereabouts, Ethan is exposed to grave danger. Meanwhile, Yasumoto experiments with a strange and deadly substance.

The episode was rated 7.66 from 1426 votes.

Extant - S2E6

#10 - You Say You Want an Evolution (Season 2 - Episode 6)


Molly panics when she discovers she is changing physically – the question is into what, and whether she can reverse what’s happening to her. Also, JD’s ex-wife, Dorothy, shows up suddenly on his doorstep to discuss their daughter.

The episode was rated 7.67 from 922 votes.

Extant - S1E1

#9 - Re-Entry (Season 1 - Episode 1)

Astronaut Molly Woods tries to reconnect with her husband, John, and son, Ethan, after returning from a 13-month solo mission in outer space. Molly’s mystifying experiences in space lead to events that will ultimately change the course of human history.

The episode was rated 7.71 from 1970 votes.

Extant - S1E3

#8 - Wish You Were Here (Season 1 - Episode 3)


Molly has to decide if she is going to reveal her pregnancy to John after he confronts her about her distant behavior. Meanwhile, John and Molly face parents who are suspicious of Ethan when he goes to school for the first time.

The episode was rated 7.71 from 1480 votes.

Extant - S1E12

#7 - Before the Blood (Season 1 - Episode 12)

When Molly finally comes face-to-face with her offspring, she realizes she may be the only one who can stop the coming danger. Julie uncovers grave secrets about Odin.

The episode was rated 7.76 from 1132 votes.

Extant - S2E13

#6 - The Greater Good (Season 2 - Episode 13)


Season Finale- Molly and JD frantically race to the hybrids to stop a Humanich plot that will destroy the human race. Also, Lucy has a shocking realization about the GSC that forces her to question her allegiance and put Ethan at risk.

The episode was rated 7.77 from 638 votes.

Extant - S1E5

#5 - What on Earth Is Wrong? (Season 1 - Episode 5)

John begins to doubt Molly's mental state when the validity of her pregnancy is questioned. Meanwhile, Ethan suffers a serious setback, and John and Julie disagree over how to care for him.

The episode was rated 7.78 from 1350 votes.

Extant - S1E6

#4 - Nightmares (Season 1 - Episode 6)


Molly uncovers top-secret footage that reveals the real reason the ISEA chose her for the solo space mission. Meanwhile, Ethan experiences his first dream, an unforeseen event for which he was not programmed; and Julie connects with a mysterious man she meets at a gym.

The episode was rated 7.79 from 1305 votes.

Extant - S2E12

#3 - Double Vision (Season 2 - Episode 12)

Molly reveals disturbing new details about Shepherd’s death to the GSC, and Lucy makes a powerful move against the humans and hybrids that could have devastating global repercussions.

The episode was rated 7.80 from 882 votes.

Extant - S1E13

#2 - Ascension (Season 1 - Episode 13)


Molly returns to space in an attempt to redirect the Seraphim away from Earth and protect the world’s population from the deadly spores. John discovers that Odin's plan has put Ethan in terrible danger.

The episode was rated 7.81 from 1154 votes.

Extant - S1E7

#1 - More in Heaven and Earth (Season 1 - Episode 7)

Convinced the agency has her baby, Molly is determined to find out where. Meanwhile, John discovers new and startling advancements in Ethan's programming, and Kern holds Kryger hostage in an attempt to recover the incriminating video he stole from the ISEA.

The episode was rated 7.82 from 1239 votes.

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