Born "on-ground" in a time near forgotten, O is the last of a dying breed in a post-sun era. Now the world lives underground in a state of virtual darkness. Family, light and personal choice are things of the past and Child Development Units, The Network and The Prime Objective are the new norm. With resources dangerously depleted by a lapse of the sun's energy, humanity is fragile and increasingly dependent on technology to survive. Meanwhile all power lies with a handful of global directors wielded through the UN who regulate every aspect of society with impersonal precision. With a new baby on the way and a blossoming love, O finally finds something to live for on this frigid dead world, until a trusted colleague is assassinated for trying to restore the sun. O finds himself on the run for the truth and life as he once knew it, yet something else is lurking that he never conceived.