As America expands westward, intrepid explorers and rugged mountain men risk their lives to blaze new trails into the wild frontier.

As America expands westward, intrepid explorers and rugged mountain men risk their lives to blaze new trails into the wild frontier. The promise of new lands teeming with game and other riches is an irresistible pull for fearless men such as Daniel Boone, Jim Bridger, and John Colter. But danger surrounds the hunters, trappers, and traders that the lead the way into the unknown frontier. As they push deeper into the wilderness, crossing impenetrable forests, vast mountain ranges, and unforgiving deserts, they face starvation, deadly weather, ferocious predators, and hostile Native Americans. But their descriptions of the natural wonders found on America's frontier encourage a tide of settlers to head west, and their epic tales of adventure and survival become the stuff of myths and legends.