First came the storm, and then the blinding white light that made everyone in town disappear. Everyone except Ellery, Loveday, Rocky the dog, and Claude, Loveday's big ginger cat. The light brought something else, too, something that isn't human. Plagued by prophetic dreams that signal the end of the world, Ellery and Loveday set out across the country to save a girl they've never met who just might be humanity's last hope.

Rosemary Decker, leader of the Children of the Ark, wants the girl too. Except she wants her dead. Rosemary's seen the end of the world coming and has been preparing for years. She's going to make a new world in her own image, and nothing's going to stand in her way.

Another storm is coming and not everyone will survive it.