Four people. Two journeys. It ends here. After surviving their hair-raising drive across Canada, Ellie and Oliver have almost made it back to Seldovia. Sam and Darien are hard on their heels, abandoning their Hawaiian honeymoon to join the fight against the monsters infesting every corner of the earth. But returning to Alaska is more difficult than any of them bargained for, especially since home no longer means safety. As Sam and Darien grapple with their growing abilities, and as the demon attacks intensify, the four are forced to make decisions that will shake them to their roots: decisions about what secrets are worth keeping, what truths are worth telling, and ultimately, what's worth dying-and living-for.