A breakdown-A secret-A trip that will change everything. Two years after suffering from a stress-induced breakdown, defence lawyer Beth Gunning is struggling to cope with life. When her husband, Rory, suggests they join Beth's sister and partner on a wild camping trip in a remote part of Montana, she decides that the freedom and tranquillity of a place far away from London might be what she needs. A chance to repair, relax, and get her head together. Rory's brother, Elliott, invites himself and his two teenage kids along for the trip. So it's set to be a wild adventure of a lifetime. Provided that Rory and Elliot can set aside their sibling rivalries, that is. Apart from some quarrelling and physical struggles, the trip seems to be going well. The Bob Marshall Wilderness is a stunning place, and everybody is embracing the fabulous experience. But after a GPS malfunction and one wrong turn that leads them off course, cracks quickly form within the group. As some clash and others struggle with their dire predicament, the situation goes from bad to worse. But Beth's dark past is about to come back to haunt her and rock the very foundations of her world. Because it appears that someone in their hiking group has an ulterior motive for joining this trip. Something extremely sinister that could ruin everything. And out here in the vast, untamed wilderness, Beth knows she can no longer run from her bleak past and must finally face her dire demons... But at what cost?