Although sixteen-year-old Hannah Gray hates nearly everything about her pioneer life on the Kansas prairie, becoming a werewolf is the absolute worst. Each night she changes into a fierce beast. Each morning she awakes to carnage she doesn't remember. Can she find a cure before those she loves uncover her terrible secret?

Bitten one evening while walking with her new boyfriend Daniel Drumm, Hannah struggles to control the wolf inside her. Each night the pull of the rising moon grows stronger. Flashes of her missing hours haunt her. She worries that it's her, and not the werewolf that attacked her, that's destroying her town. Daniel tells her he loves her, but will he still feel that way if he discovers the dark beast hidden within her?