Cody Treat has gotten used to living among the ruins of modern civilization. But when one of the thousands of ghosts following him finds a way to communicate their need for help, he learns that the end of the world was just the beginning of a fight for survival. Orphaned and alone after an apocalyptic meteor event followed by a plague, Cody roams the ruins of Oklahoma City looking for food and shelter from the gangs hoarding supplies and torturing other survivors. Crowds of ghostly figures mutely follow him, until one day the spirit of a girl writes a message in the snow. This begins the quest to find others who can help free the recently dead.

Time is short, though. Something coming from the east, something looking to harvest the energy of the spirits trapped on earth.