"A lone astronaut. An impossible mission. An ally he never imagined. Ryland Grace is the sole survivor on a desperate, last-chance mission--and if he fails, humanity and Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions...

After astronaut Catherine Wells's ship undergoes a catastrophic event and loses contact with NASA, the entire world believes her to be dead. Miraculously - and mysteriously - she survives, though everyone else on the mission is lost, as are most of Catherine's memories of her time in space. Her reentry after a decade away is a turbulent one: her husband has moved on with another woman, and the young daughter she left behind has grown into a teenager...