The Expanse

Season 4

2019 · 10 episodes · 8h 5m in all · 8.1/10

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.

Episodes

1. 

   1. New Terra

   13 Dec 2019 · 51 min · 8.1/10

   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.

2. 

   2. Jetsam

   13 Dec 2019 · 50 min · 7.9/10

   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.

3. 

   3. Subduction

   13 Dec 2019 · 47 min · 8.0/10

   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.

4. 

   4. Retrograde

   13 Dec 2019 · 45 min · 7.9/10

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

5. 

   5. Oppressor

   13 Dec 2019 · 47 min · 7.8/10

   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.

6. 

   6. Displacement

   13 Dec 2019 · 50 min · 8.0/10

   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.

7. 

   7. A Shot in the Dark

   13 Dec 2019 · 46 min · 8.0/10

   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.

8. 

   8. The One-Eyed Man

   13 Dec 2019 · 54 min · 8.2/10

   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.

9. 

   9. Saeculum

   13 Dec 2019 · 45 min · 8.7/10

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

10. 

    10. Cibola Burn

    13 Dec 2019 · 50 min · 8.5/10

    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.