On the edge of the American frontier, a few brave men risk their lives delivering vital supplies to people living off the grid. From the dense woodlands of Montana's Flathead National Forest, through the isolated heart of Idaho's Hells Canyon, to the frozen wastelands of Alaska's high tundra, follow five rugged adventurers as they live and breath the high-stakes of hauling critical cargo into these unique tracts of wilderness. Always on the move, these deliverymen have been shaped by the great outdoors, and have learned the hard way how to tackle anything that Mother Nature throws in their path. Yet they all have one thing in common: there's no job too tough. And whether by bush plane, jet boat, snowmachine, dog-sled or pack horse, they'll overcome all obstacles and do whatever it takes to make their delivery.