Jefferson announces the Louisiana Purchase, making the expedition even more important.
They leave Camp Wood and head up the Missouri River, hoping to find a Northwest Passage.
Sergeant Charles Floyd dies of natural causes, the only death on the entire expedition.
The Corps are nearly involved in a fight with the Teton Sioux, but luckily, a Sioux Chief calls off the attack.
The Corps record an astounding negative 45 degree weather, which they never expected.
The Corps reaches the Great Falls and must portage around them.
The expedition finds a Shoshone camp and Sacagawea recognizes her brother as the chief.
The expedition finally reaches the Pacific and votes on which side of the river to stay on.
The expedition leaves for home after a rainy winter.
They make it home to St. Louis after only 6 months of travel on the way back.