Announced in 2014 and making its debut in 2015, space-opera series The Expanse went on to become one of the most liked Sci-fi series in the last decade. A Sci-Fi thriller, the series is set two hundred years in the future and follows the hunt for a missing woman and expose the greatest conspiracy in human history. The Expanse Season 3 returns on SyFy this April and picks up where it left off.
The Expanse Season 3 Cast
The series is based on the popular New York Times bestselling book series collectively known as The Expanse, written by Daniel Abraham and Ty Franck.

The Expanse Season 3 (2018)
Developed By: Mark Fergus and Hawk Ostby
Cast: Thomas Jane, Steven Strait, Shohreh Aghdashloo, Cas Anvar, Dominique Tipper, Wes Chatham, Frankie Adams
Network: SyFy
Air Date: April 11 2018, 9 PM
The Expanse Season 3 Plot
After mankind has colonized the solar system. A hardened detective and a rogue ship’s captain come together for what starts as the case of a missing young woman. Their mission evolves into a race across the solar system to expose the greatest conspiracy in human history.
Season 2 revolved around the interplanetary tensions that rose to an an all-time high. The cold war between Earth and Mars is on the brink of an all-out battle.
Picking up immediately following the emotional and suspenseful second season finale, The Expanse Season 3 finds Earth, Mars and The Belt at war. Each competing entity vying for control. Now, more than ever, the mission to unlock the secret of the protomolecule reaches an all-time high. Every decision made could jeopardize the survival of the solar system.
The Expanse Season 3 Trailer
Watch this trailer of The Expanse Season 3 and tell us if you like the shape the series has taken so far and what you expect in the new season.
The Expanse Season 3 Episode Guide
Can’t wait to find out more about the upcoming season 3 episodes? Here’s a quick peek inside.
Season 3 Episode 1
The Rocinante crew deals with the fallout over Naomi’s betrayal while caught in the middle of the war between Earth and Mars. Avasarala and Bobbie hatch an escape plan.
Season 3 Episode 2
The Rocinante answers an unexpected distress signal. Bobbie and Avasarala find themselves being hunted by a mysterious captor. UN Secretary-General Sorrento-Gillis brings in a colleague from his past to lend an ear during this crucial time of war.
Season 3 Episode 3
As Earth strategizes a costly ploy to gain advantage in the war against Mars, Anna struggles to convince Sorrento-Gillis to do the right thing. Avasarala and Bobbie seek refuge aboard the Rocinante.
Season 3 Episode 4
The Rocinante tends to wounded Martian soldiers in exchange for supplies. Avasarala struggles with how to disseminate a key piece of evidence despite being in hiding.
Season 3 Episode 5
The search for Prax’s daughter comes to a head. Admiral Souther’s men plan for mutiny aboard the Thomas Prince.
Season 3 Episode 6
The final battle between Earth and Mars threatens the very future of humanity. A new monster is unleashed on Prospero Station. Anna receives the smoking gun she needs.
Season 3 Episode 7
All eyes turn to the edge of the solar system as a mysterious new presence emerges. Naomi recommits to her roots. Drummer butts heads with a seasoned new commander aboard the Behemoth. A young Belter makes a name for himself.
Season 3 Episode 8
An old friend taunts Holden with the answers he seeks. Naomi struggles to fit in. A mysterious low-level tech aboard the Thomas Prince enacts a terrifying plan.
Season 3 Episode 9
The Rocinante seeks a new gameplan as they attempt to avoid capture. Melba’s true motives are revealed. Naomi is torn between identity and ideal. Anna seeks a way to stay aboard the Thomas Prince.
Season 3 Episode 10
Holden sees past, present, and future. A ghost from Melba’s past threatens her mission. Bobbie struggles to trust an old friend as she leads a group into unchartered territory.
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