
1 - Part 1
Part 1 covers the expedition up to the headwaters of the Missouri River
The story of the most important American exploration expedition in American history and the participants in it.

Part 1 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.