The BEST Seasons of The Expanse

Every season ever - ranked by fan votes!

Last Updated: Dec 19, 2021

Network: Amazon

Two hundred years in the future, in a fully colonized solar system, police detective Josephus Miller is given the assignment to find a missing young woman, Julie Mao. Joining his task is James Holden, former first officer of an ice freighter who is involved in an incident caused by the tense relationship between Earth, Mars and the Belt. Far from their struggles in space, United Nations executive Chrisjen Avasarala works to prevent war between Earth and Mars. Soon the three find out that the missing woman is connected to a vast conspiracy that threatens all humanity.

Season 3

#1 - Season 3

First Aired: Apr 11, 2018

As the Rocinante crew digs deeper into the search for Prax's missing daughter, the war between Earth and Mars turns deadly in ways the solar system has never seen. But a new threat in the outer reaches of the Belt could prove much more dangerous, threatening to test the very future of humanity.

star 8.70
705 votes
Season 2

#2 - Season 2

First Aired: Feb 1, 2017

Season 2 kicks off with interplanetary tensions at an all-time high, the cold war between Earth and Mars is on the brink of an all-out battle.

star 8.47
855 votes
Season 1

#3 - Season 1

First Aired: Dec 14, 2015

In season one, the disappearance of rich-girl-turned-political-activist Julie Mao linked the lives of Ceres' detective Joe Miller, accidental ship captain James Holden and U.N. politician Chrisjen Avasarala. Amidst political tension between Earth, Mars and the Asteroid Belt, these three individuals unravel the single greatest conspiracy of all time.

star 8.15
1,244 votes
Season 4

#4 - Season 4

First Aired: Dec 13, 2019

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.

star 8.06
618 votes
Season 5

#5 - Season 5

First Aired: Dec 16, 2020

In different parts of the Solar System, the crew of the Rocinante and their allies confront the sins of their past, while Marco Inaros unleashes an attack that will alter the future of Earth, Mars, the Belt, and the worlds beyond the Ring.

star 8.01
405 votes

#6 - Season 6

First Aired: Dec 10, 2021

Holden and the crew of the Rocinante fight alongside the Combined Fleet of Earth and Mars to protect the Inner Planets from Marco Inaros and his Free Navy's campaign of death and destruction. Meanwhile, on a distant planet beyond the Rings, a new power rises.

star 8.00
11 votes