Season 4
🎬 10 Episodes 📅 2019 ⏱ 63 min
A missing person case ignites a desperate search across the solar system in The Expanse, where a cynical detective and a rogue ship captain become unlikely allies hunting for truth. As they race against time and enemies from every corner of human space, their investigation uncovers a conspiracy vast enough to reshape civilization itself. Trust becomes a luxury neither can afford, and the closer they get to answers, the higher the stakes become. What begins as a simple disappearance evolves into a mission that will define the fate of humanity.
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📊 Season Stats
10
Episodes
2019
Year
63
min / ep
10.5
Watch Hours
4/6
Season No.
⭐ 8.9
Best Episode
Ep. 9 · Saeculum
🎬 Season Trailer
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🎬 Episodes 10 episodes
1
⭐ 8.3
New Terra
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.
🎬 Breck Eisner ✍️ Mark Fergus
2
⭐ 8.0
Jetsam
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.
🎬 Breck Eisner ✍️ Laura Marks
3
⭐ 8.1
Subduction
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.
🎬 David Petrarca ✍️ Dan Nowak
4
⭐ 8.1
Retrograde
Drummer and Ashford confront a dangerous person from Naomi's past. Murtry hunts down a target. Bobbie's makes a life-changing confession.
🎬 David Petrarca ✍️ Matthew Rasmussen
5
⭐ 8.0
Oppressor
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.
🎬 Jeff Woolnough ✍️ Daniel Abraham
6
⭐ 8.2
Displacement
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.
🎬 Jeff Woolnough ✍️ Hallie Lambert
7
⭐ 8.2
A Shot in the Dark
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.
🎬 Sarah Harding ✍️ Dan Nowak
8
⭐ 8.3
The One-Eyed Man
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.
🎬 Sarah Harding ✍️ Dan Nowak
9
⭐ 8.9
Saeculum
Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew's lives at risk.
🎬 Breck Eisner ✍️ Daniel Abraham
10
⭐ 8.7
Cibola Burn
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.
🎬 Breck Eisner ✍️ Daniel Abraham