Twenty-five-year-old Lisa Huntington pushes too far into the winter woods of northern Maine when her snowmobile dies and the trail disappears beneath fresh snow. With no signal, failing strength, and daylight fading, she presses on as the forest grows tighter and the silence turns watchful. Tracks appear. Sounds follow. By nightfall, Lisa learns the wilderness is not empty, not forgiving—and once it claims something, it never gives it back.