When a string of the world's most brilliant scientists dies by inexplicable suicide, a group of former Oxford friends is pulled into a mystery reaching back to China's Cultural Revolution and outward toward a civilization-ending threat from beyond the stars. As the fundamental laws of physics appear to fracture and a countdown begins that only certain minds can see, they must grapple with a truth that dwarfs any human conflict. Adapted from Liu Cixin's acclaimed novels, this sweeping science-fiction epic spans continents and decades to confront humanity's first contact with the unknowable. Cerebral and unsettling, it stares down the vast indifference of the cosmos.