The first four episodes of futuristic space thriller The Expanse are now available online and On Demand. Following the conclusion of last night’s airing of the second episode, Syfy announced that Episodes 1-4 were available on Syfy.com and On Demand cable, satellite and telco TV platforms. The move makes the series’ third and fourth episodes available in advance of their Syfy linear premieres on December 22 and 29.

The release of Episodes 1-4 follows the successful pre-linear debut of The Expanse’s first episode, which was sampled 4.4 million times* during its November 23 to December 14 run on Syfy.com, On Demand platforms and digital outlets, according to Syfy.

Set 200 years in the future, The Expanse follows the case of a missing young woman that brings a hardened detective (Thomas Jane, Hung) and a rogue ship’s captain (Steven Strait, Magic City) together in a race across the solar system that will expose the greatest conspiracy in human history. The series is based on the New York Times bestselling book series collectively known as The Expanse, written by Daniel Abraham and Ty Franck (under the pen name James S. A. Corey).

The Expanse airs regularly on Syfy on Tuesdays at 10 PM.