Lewis & Clark: The Journey of the Corps of Discovery  tells the remarkable story of the entire Corps of Discovery – not just  of the two Captains, but the young army men, French-Canadian boatmen,  Clark’s African-American slave, and the Shoshone woman named Sacajawea,  who brought along her infant son. As important to the story as these  many characters, however, was the spectacular land itself, and the  promises it held.