Lewis & Clark: The Journey of the Corps of Discovery is a 1997 documentary film about the Lewis and Clark Expedition directed and co-produced by Ken Burns. The film, produced by Burns' Florentine Films for Washington, DC PBS station WETA-TV, first aired on PBS on November 4 and 5, 1997. Part 1 of the film covers the expedition up to the headwaters of the Missouri River. Part 2 covers the meeting with the Shoshone, the treacherous crossing of the mountains, the downstream rush to reach the Pacific Ocean, and the ambitious explorations of the return trip.