Emily Ford sets out with Diggins, a borrowed sled dog, to become the first woman and person of color to thru-hike the 1,200-mile Ice Age Trail in winter. As the journey through subzero temperatures tests her physical and mental endurance, Emily and her canine protector develop an unbreakable bond as they embrace the unexpected kindness of strangers and discover they’ve become figureheads in the movement to make the outdoors more accessible for everyone.