Jenny Willson is a hard-edged, caustic-witted warden from Banff National Park who considers poachers and ladder-climbing bureaucrats equally repulsive and worthy of the same painful fate. Does keeping her promise to protect her park from them mean crossing lines and putting her career at risk? When Willson discovers animals disappearing from Canada's mountain parks, she begins a complex investigation that follows a trail of deceit, distraction, and murder. With a growing list of victims, both animal and human, Willson finds herself in a race for justice that criss-crosses the Canada-U.S. border and pushes her to a place from which she might not return.