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 4 Episode 9 - Saeculum

Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew's lives at risk. Air Date : 13th-Dec-2019

Season 4 Episode 1 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 2 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 3 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 4 - Retrograde

Drummer and Ashford confront a dangerous person from Naomi's past. Murtry hunts down a target. Bobbie's makes a life-changing confession. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 5 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 6 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 7 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 8 - 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. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 9 - Saeculum

Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crew's lives at risk. Air Date : 13th-Dec-2019  Read More

Season 4 Episode 10 - 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. Air Date : 13th-Dec-2019  Read More