"The Expanse" is a science fiction television series based on the book series by James S.A. Corey. Set in a future where humanity has colonized the solar system, it explores the political tensions between Earth, Mars, and the Belt, a region of space populated by asteroid miners. The story begins with the mysterious disappearance of a young woman, leading to a conspiracy that threatens the fragile peace among the factions. The series features a diverse cast, including characters like James Holden, Detective Miller, and Chrisjen Avasarala. It combines elements of mystery, drama, and space opera, receiving critical acclaim for its storytelling, character development, and realistic portrayal of space travel.