Centuries ago, humanity mastered space travel only to find themselves alone in a quiet solar system. Everything changed when they encountered the Navigators, a species of aliens capable of teleportation. Not long after building a new home on a distant planet and surrounding it with satellite colonies, the Navigators revolted, leaving the colonies stranded on the far side of the Universe, with no contact with Earth.

Long after Earth has fallen into the realm of legend, agent Kenner Fense works for the Colony Defense Bureau, an organization claiming to keep the peace among the impoverished colonies while the wealthy and powerful isolate themselves on the planet's surface. But Fense's latest mission, which should have been a routine assassination, turns his world on its head when he meets a young woman named Ashes and her newfound friend, a captive Navigator.

Fense and Ash find themselves on the run from those who would use the creature's power to do immeasurable harm, but it's a small solar system with few places to hide. The chase brings out the best and worst humanity has to offer, and the only safe place to hide may be the only place no one knows how to find: Earth, the Foreland.