Nothing ever happens in Dawson, Colorado. Until high school senior Cassidy Roekiem's mom checks into a wellness center, but nothing is wrong with her. Then people start seeing lights in the sky and missing chunks of time, but the town insists nothing is going on. And now Hayden, the new boy at school who keeps to himself and is more than a little mysterious, starts to notice her like it's nothing out of the ordinary. Suddenly, nothing is starting to feel a whole lot like something. And everything leads back to Hayden. The boy she's starting to fall for. The boy with too many dark secrets for his kind heart. The boy she's pretty sure isn't human.