Unknown secrets threaten the solidarity of the Henley family when a letter arrives from India that will change the course of their lives. Bryn, the vivacious daughter of Andrew Henley, receives the letter, which is addressed to her father. Eaten up by curiosity she is forced to wait for her father on the porch swing for him to return back home. The contents of the letter are so devastating that Andrew now must risk the lives of his beloved wife and daughter on a journey that will take them across the mountains and will threaten their very existence. Together as a family they will brave nature's wrath and will overcome impossible obstacles as they make their treacherous way to St. Louis.