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Season 3 – The Expanse

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Apr 2018

Drama

Sci-Fi

Fantasy

Adventure

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Tomatometer

Popcornmeter

100%

Tomatometer

25 Reviews

97%

Popcornmeter

1,000+ Ratings

Hundreds of years in the future, things are different than what humanity is used to after humans have colonized the solar system and Mars has become an independent military power. Rising tensions between Earth and Mars have put them on the brink of war. Against this backdrop, a hardened detective and a rogue ship's captain come together to investigate the case of a missing young woman. The investigation leads them on a race across the solar system that could expose the greatest conspiracy in human history.

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Critics Consensus

Building on earlier potential and extending character arcs throughout a solidly crafted third season, The Expanse continues to impress -- and shows no signs of abating.

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Emily St. James

Vox

Jul 2, 2018

Game of Thrones in space.

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Autumn Noel Kelly

Newsweek

May 23, 2018

The series is one big spaceship explosion away from becoming the most visually and narratively compelling work of fiction I have seen all year.

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Liz Shannon Miller

IndieWire

Apr 12, 2018

B+

The Expanse isn't perfect television, but entering Season 3 it is undeniably confident about the story it's telling, and more importantly the kind of stories it wants to tell.

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Mark Serrels

CNET

Mar 28, 2023

It is dense with peerless universe building. It's a show about the very real perils of space travel and colonization, but also a surprisingly nuanced show that deals in interplanetary politics and class warfare.

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Ruth Maramis

FlixChatter Film Blog

Nov 9, 2020

4.5/5

Such a highly-addictive series thanks to the phenomenal production values, terrific characters, meticulous world-building + intriguing plots with genuinely-high stakes. It's everything one wants in a sci-fi series, or any TV genre for that matter.

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Ed Fortune

Starburst

Mar 1, 2019

8/10

The Expanse is one of those shows that easily lives up to its name. Not only does the title evoke the vast and dangerous emptiness of space, but this is a show crammed full of detail and interaction.

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Garrick P

@Ski-941 Oct 17, 2026

Amazing season to an amazing show! Really brought the series together. A must watch.

G G

@MChief117 Jan 11, 2026

Again, I'm a huge fan of sci-fi and this has clearly become my favorite show 💯

Nate D

@MamdanisDomMommy Jan 11, 2026

The Expanse is written like a role playing game. They came up with a setting and then just rolled some dice to glue attributes onto some clichéd characters that play around in that setting. That's the entire thing. They consistently tease you with the promise of a larger story emerging from this murky soup but it never actually does. Stories require endings and an ending would doom the cash cow of the open-ended setting and the bottomless cup of contrived cliffhangers it comes with. By the third season it's just full-fledged survivor porn. A massive catastrophe strikes, somebody tries to fix it and makes it worse. Somebody else tries to fix it and makes it worse still. They have a little fight and then the problem magically solves itself just in time to set up the next episode's catastrophe. The remainder of the entertainment value stems from making the woman who sounds like she's dying of throat cancer say some swears. You'd have to be a Millennial to think this is groundbreaking.

John A

@RT57041560 Aug 7, 2025

A well made and intelligent show. Perhaps not enough people are aware of it - otherwise I see no reason why more seasons were not made

John R

@LostPlot Aug 2, 2025

My opinion the best season of them all, simply superb!

Monty T

@RT13239560 Mar 24, 2025

When are new seasons from the rest of the books coming??

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Steven Strait

Holden

Thomas Jane

Detective Joe Miller

Shohreh Aghdashloo

Chrisjen Avasarala

Dominique Tipper

Naomi Nagata

Cas Anvar

Alex Kamal

Wes Chatham

Amos Burton

Episode 1

Aired Apr 11, 2018

Fight or Flight

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.

Details

Episode 2

Aired Apr 18, 2018

IFF

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.

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Episode 3

Aired Apr 25, 2018

Assured Destruction

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.

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Episode 4

Aired May 2, 2018

Reload

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.

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Episode 5

Aired May 9, 2018

Triple Point

The search for Prax's daughter comes to a head; Admiral Souther's men plan for mutiny aboard the Thomas Prince.

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Episode 6

Aired May 16, 2018

Immolation

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.

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Episode 7

Aired May 23, 2018

Delta-V

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.

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Episode 8

Aired May 30, 2018

It Reaches Out

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.

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Episode 9

Aired Jun 6, 2018

Intransigence

The Rocinante seeks a new game plan 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.

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Episode 10

Aired Jun 13, 2018

Dandelion Sky

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 uncharted territory.

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Episode 11

Aired Jun 20, 2018

Fallen World

Drummer and Ashford find themselves trapped with few options for survival; Anna tends to the wounded masses as Melba continues to hunt down her prey; the Rocinante crew struggles to survive as Naomi reunites with her true family.

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Episode 12

Aired Jun 27, 2018

Congregation

As survivors arrive to the Behemoth, two factions form over how to handle a life-or-death threat; Holden grapples with what he's seen and the choices he must make.

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Episode 13

Aired Jun 27, 2018

Abaddon's Gate

Holden and his allies must stop Ashford and his team from destroying the Ring, and perhaps all of humanity.

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The Expanse: Season 3 Featurette - Beyond Science