The Expanse (2015) is a critically acclaimed science fiction TV series based on the novel series by James S.A. Corey. Set in a distant future where humanity has colonized the solar system, the show is known for its complex political intrigue, intricate storytelling, and realistic portrayal of space travel.

The story unfolds across three main factions: Earth, Mars, and the asteroid-dwelling “Belters,” who are often oppressed by the inner planets. The discovery of an ancient alien technology, known as the “protomolecule,” sets off a chain of events that threatens the fragile peace between these factions and the survival of humanity.

The series begins with a seemingly simple investigation led by a detective, Josephus Miller, and the crew of a spaceship called the Rocinante, captained by James Holden. As they uncover a deep conspiracy involving the protomolecule, the stakes escalate into a full-blown crisis that could reshape the future of the entire solar system.

With its blend of political drama, military conflicts, and existential threats from alien life, The Expanse is praised for its deep world-building, character development, and realistic science fiction elements. The show explores themes of survival, identity, and the cost of progress in a vast and often hostile universe.