National Geographic's New Large-Format Film With stunning aerial cinematography and meticulous recreations Lewis & Clark dramatizes the legendary early 19th-century expedition that crossed the uncharted North American West. Relive one of the greatest tales of adventure and exploration in history as National Geographic brings to life the epic journey of Lewis Clark their guide Sacagawea and the brave Corps of Discovery across the land that would become the United States. Now two hundred years after the launch of this ambitious expedition experience first-hand the danger and breathtaking beauty of the unknown West as it unfolded before the eyes of Lewis & Clark.