A sole survivor, apparently, of an unstoppable pandemic. He begins a journey west, hoping to find someone?anyone?who has also survived. The search proves fruitless, and Jack stops in the tiny hamlet of Luna, New Mexico, slipping into despondency, and then despair, on the brink of defeat. But when he suddenly finds he is not alone after all, what happens next re-ignites his consciousness, provides him a home, and launches him on an unforgettable mission.