The Expanse

10 Best Episodes of The Expanse - Season 4

A thriller set two hundred years in the future following the case of a missing young woman who brings a hardened detective and a rogue ship's captain together in a race across the solar system to expose the greatest conspiracy in human history.

Written by Sophie and last updated on feb 02, 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!

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The Expanse - S4E5

#10 - Oppressor (Season 4 - Episode 5)

As tensions on Ilus reach a boiling point, Holden reveals a secret. Avasarala debates Nancy Gao while an emergency on the Roci forces Alex and Naomi into action.

The episode was rated 7.78 from 2027 votes.

The Expanse - S4E4

#9 - Retrograde (Season 4 - Episode 4)

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Drummer and Ashford confront a dangerous person from Naomi's past. Murtry hunts down a target. Bobbie's makes a life-changing confession.

The episode was rated 7.81 from 2045 votes.

The Expanse - S4E7

#8 - A Shot in the Dark (Season 4 - Episode 7)

Naomi and Alex work to keep the Barbapiccola in orbit amidst a power outage. Avasarala faces a tough decision. Holden and Elvi race to find a cure for a disease spreading on Ilus.

The episode was rated 7.82 from 1999 votes.

The Expanse - S4E3

#7 - Subduction (Season 4 - Episode 3)

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New alien threats emerge on Ilus as Naomi battles health challenges on the planet. Bobbie searches for a missing person on Mars. Avasarala faces a new challenge in the UN.

The episode was rated 7.87 from 2103 votes.

The Expanse - S4E2

#6 - Jetsam (Season 4 - Episode 2)

Avasarala is blindsided while on a visit to Mars. The Roci crew continue their protomolecule investigation while tensions between the RCE and Belters reach a tipping point. Drummer and Ashford track down a terrorist.

The episode was rated 7.91 from 2148 votes.

The Expanse - S4E6

#5 - Displacement (Season 4 - Episode 6)

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The Roci crew prepares for an incoming disaster on Ilus. Ashford and Drummer close in on an enemy within the Belt. Bobbie takes on a dangerous job.

The episode was rated 7.94 from 2035 votes.

The Expanse - S4E1

#4 - New Terra (Season 4 - Episode 1)

The crew of the Roci investigates a strange protomolecule ruin on an alien planet. Bobbie copes with civilian life on Mars. Drummer and Ashford battle with piracy in the Belt.

The episode was rated 7.94 from 2303 votes.

The Expanse - S4E8

#3 - The One-Eyed Man (Season 4 - Episode 8)

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Avasarala faces fallout for the UN's military mission. Ashford and Drummer makes big decisions about their future within the OPA. A spreading illness on Ilus takes a toll on Amos. Alex and Naomi's attempt to rescue the Barb turns desperate.

The episode was rated 7.97 from 1988 votes.

The Expanse - S4E9

#2 - Saeculum (Season 4 - Episode 9)

Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew's lives at risk.

The episode was rated 8.22 from 2006 votes.

The Expanse - S4E10

#1 - Cibola Burn (Season 4 - Episode 10)

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Ashford closes in on an enemy while uncovering a dangerous plot. Avasarala faces a crossroads in her personal and political life. The Roci crew works to reestablish life on Ilus in the wake of a deadly catastrophe.

The episode was rated 8.26 from 2046 votes.

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