In the future, humankind has taken only limited advantage of a miraculous gift left for it in the far-distant past. A beneficent and inscrutable alien race called the Others has provided "gates" that enable passage to all corners of the galaxy. But after the colonization of a single star system, a repressive government on Earth has forbidden all further explorations, seizing the returning starship Emissary and taking its crew captive along with an alien passenger the vessel encountered on its voyage. A wealthy entrepreneur and off-world rebel incensed by the prevailing antiexpansionist politics, Daniel Brodersen decides to take matters into his own hands.