Tristan's father taught him everything he near about tracking and canyoneering, but after his father disappears during a hike, Tristan doesn't often get a chance to roam outside. His mother won't get out of bed, his father's outdoor outfitting business is foundering, and his uncle can barely help his family buy food. When he meets Brigit and her young brother Dean, he is interested in going canyoneering with her. Brigit, just a few years older than Tristan, is raising Dean after the death of their mother, and working for Alex, who had a rival adventuring business. When Tristan is able to go on an adventure with Brigit and a Polish climber, Dominik, he realizes how much he misses the outdoors. When his mother's caretaker, Elspeth, suggest that his mother would handle the death of his father better if she has some artifact from his last hike, Tristan decides to go to the dangerous lower canyon to look for one. He does this with Alex's blessing, and Brigit goes along with him. It is soon apparent, however, that Brigit blames Tristan's father for her mother's disappearance and intends to make Tristan pay. Will Tristan find an clues of his father in the forest... or will he ever be able to get out alive?