Sent by President Thomas Jefferson to find the fabled Northwest Passage, Meriwether Lewis and William Clark led the most important expedition n history a voyage of danger and discovery from St. Louis to the headwaters of the Missouri River, over the Continental Divide to the Pacific. It was the United States' first exploration of the West and one of the nation's most enduring adventures. This extraordinary film tells the remarkable story of the entire Corps of Discovery not just the two famous Captains, but the young army men, French-Canadian boatmen, Clark's African-American slave, and the Shoshone woman named Sacagawea, who brought along her infant son. Journey with them all, across a breath-taking landscape in an unforgettable experience that explores both the history and promise of America. Audio Commentary, Featurette, Interviews, Double Sided/Dual Layer.