Burned-out by both her marriage and work, Liz is desperate for an escape. More than that, she craves an adventure, a total reset. So, when she plans a vacation with her three best friends, she persuades them to spend four nights camping in the stunning mountains of Norway. Following a trail that climbs through lush valleys, towering peaks, and past jewel-blue lakes, Liz is sure that the hike is just what they need.

But as they stride farther from civilization, it becomes clear that the women are not the only ones looking to lose themselves in the mountains. The wilderness hides secrets darker than they could ever have imagined, and if they're not careful . . . not all of them will return.