The Expanse is an American science fiction television series developed by Mark Fergus and Hawk Ostby, based on The Expanse novels by James S. A. Corey. The series is set in a future where humanity has colonized the Solar System and follows a disparate band of antiheroes – United Nations Security Councilwoman Chrisjen Avasarala (Shohreh Aghdashloo), police detective Josephus Miller (Thomas Jane), ship’s officer James Holden (Steven Strait) and his crew – as they unwittingly unravel and place themselves at the center of a conspiracy which threatens the system’s fragile state of Cold War-like peace, the class balance, and the survival of humanity.