Angela Dimato, a tenacious U.S. Fish and Wildlife Agent, struggles to rebuild her life after the murder of her partner. During a routine tour of the Rocky Mountain Arsenal, Angela assesses the growing prairie dog town within the wildlife refuge when, to her horror, she discovers the body of a soccer mom sprawled out among the burrows. With her trademark instinct and her gun in tow, Angela investigates the murder, even as she battles the crippling flashbacks haunting her from her partner's case. The investigation takes a sinister turn when the dead woman is identified as the leader of a group petitioning for the eradication of the prairie dog town. As Angela digs toward the truth, she finds her only hope is to tap into the wisdom of the case's sole eye-witness — a burrowing owl — before more lives become at stake.