Six long years. Two disparate colonies. Devastated by plague, unrest, and nature's raw fury, Camp Eight is in ruins. Their young chieftain has ordered the failed colony abandoned. For the second time in her short life, Gabi Serrano finds herself running from a home that dying. Though her mentor leads their expedition, twisted fate had placed Gabi in the company of her nemesis, Marya. With so much bad blood between them, the slightest provocation could set them at each other's' throats and jeopardize the lives of their companions. Yet the adversaries must work together to survive, even as eradication lurks a step behind them. Concordia has blossomed into a thriving community, its wounds mended after deadly harsh winters and labor unrest. Every citizen is united in their resolve to ensure Concordia's future. But a horrific disaster shakes the very foundation of Concordia, jeopardizing her citizens once more. As tragedy sends Cal McLaughlin to the brink, he must face a specter that has haunted him for years. Even as Governor Owens rallies the populace to rebuild, a distant echo from Project Columbus's past roars into the present. With a threat they never expected knocking on Concordia's door, Darius must piece together the puzzle of Doctor Benedict's true intentions before Concordia falls into darkness.