Spaceships have suddenly appeared in the skies above every city on the planet. Inside is an intellectually, technologically, and militarily superior alien race known as the Overlords. At first, their demands seem benevolent: unify Earth, eliminate poverty, end war. But at what cost? To those who resist, it’s clear that the Overlords have an agenda of their own. Has their arrival marked the end of humankind . . . or the beginning?