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Season Guide

The Expanse Season 4

10 episodes

Season 4 Review

⚠ Spoiler alert Season notes below reveal how the story develops.

With the Ring Gates now open to thousands of new planets, a blood soaked gold rush begins, igniting new conflicts between Earth, Mars, and the Belt. Meanwhile, on one unexplored planet, the Rocinante crew gets caught in a violent clash between an Earth mining corporation and desperate Belter settlers as deadly new threats from the protomolecule emerge.

Season Review

The first Amazon season: Ilus, the alien world with a dead civilization’s infrastructure and a living protomolecule sample, and the Belters’ claim colliding with Earth’s charter. It’s a slower, more claustrophobic season (planet of-the week with heavy themes: colonialism, labor, genocide by engineered biology), but the interplanetary standoff resolution and the killer robots reveal under the planet’s surface are superb. Holden’s increasingly messianic connection to Miller’s ghost guest pays off beautifully.

Episodes

1
New Terra
SummaryWith 1300 new worlds within reach, a new interplanetary "land rush" has begun. The UN charges the crew of the Rocinante to settle a land dispute on its new colony…
2019-12-13 ★ 8.1
2
Jetsam
Summary 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…
2019-12-13 ★ 8.2
3
Subduction
SummaryNew 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.Our…
2019-12-13 ★ 8.2
4
Retrograde
Summary Drummer and Ashford confront a dangerous person from Naomi’s past. Murtry hunts down a target. Bobbie’s makes a life changing confession. Our Take A slow burn that mostly pays…
2019-12-13 ★ 8.3
5
Oppressor
Summary 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. Our…
2019-12-13 ★ 8.1
6
Displacement
SummaryThe 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.Our TakeSolid, satisfying television.…
2019-12-13 ★ 8.3
7
A Shot in the Dark
SummaryNaomi 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…
2019-12-13 ★ 8.3
8
The One-Eyed Man
Summary 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…
2019-12-13 ★ 8.2
9
Saeculum
Summary Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew’s lives at risk. Our Take A tense, focused hour that finally pays…
2019-12-13 ★ 8.6
10
Cibola Burn
SummaryAshford 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…
2019-12-13 ★ 8.3