With the help of guide Sacagawea and friendly Native American tribes, Lewis and Clark and the Corps of Discovery make it through the snowy Bitterroot Mountains. After crossing the Continental Divide, they find themselves at last traveling with the current instead of struggling against it. Finally they catch sight of their goal: the Pacific Ocean.
| Name | Type | Role | |
|---|---|---|---|
| Dayton Duncan | Writer | ||
| Ken Burns | Writer | ||
| Ken Burns | Director |