Fans of The Expanse finally know when they can expect Amazon to continue the cult-hit sci-fi series. The internet giant has confirmed that the fourth season of The Expanse will debut on December 13th. As you might have surmised, it's a direct continuation of the narrative you saw on TV. Now that the Ring Gates have opened to more planets, there's a "blood-soaked gold rush." The crew of the Rocinante is in a particularly dire mess -- it's entangled in a fight between an Earth mining company that claimed a planet and the Belt colonists that were there first.