The Expanse: Season 4
The Expanse Season 4 continues the overarching saga across 10 episodes. The television series, developed by Mark Fergus and Hawk Ostby and based on the series of novels of the same name by James S., is an American science fiction drama, mystery, and sci-fi and fantasy series set two hundred years in the future. The series follows a thriller set two hundred years in the future and stars actors including Steven Strait,
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- The series is an American science fiction television developed by Mark Fergus and Hawk Ostby, initially for the Syfy network.
- The narrative is based on the series of novels of the same name by James S.
- The show is a thriller set two hundred years in the future.
- The cast includes actors such as Steven Strait, Dominique Tipper, and Wes.
Season overview
The Expanse Season 4 continues the overarching saga across 10 episodes. The television series, developed by Mark Fergus and Hawk Ostby and based on the series of novels of the same name by James S., is an American science fiction drama, mystery, and sci-fi and fantasy series set two hundred years in the future. The series follows a thriller set two hundred years in the future and stars actors including Steven Strait, Dominique Tipper, and Wes.
Episode Guide
Season 4 Progress Shield
New Terra
Dec 13, 2019
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.
Jetsam
Dec 13, 2019
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
Subduction
Dec 13, 2019
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.
Retrograde
Dec 13, 2019
Drummer and Ashford confront a dangerous person from Naomi's past. Murtry hunts down a target. Bobbie's makes a life-changing confession.
Oppressor
Dec 13, 2019
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.
Displacement
Dec 13, 2019
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.
A Shot in the Dark
Dec 13, 2019
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 One-Eyed Man
Dec 13, 2019
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.
Saeculum
Dec 13, 2019
Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew's lives at risk.
Cibola Burn
Dec 13, 2019
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