The expedition to cross the North American continent led by Lewis and Clark was an epic mission that included incredible deprivation. In Calling the Wind, the explorers have spent the long, wet winter on the Pacific Coast and are eager to head home. Their homebound voyage will begin upriver on the mighty Columbia River, and proceed over the mountain ranges that nearly ended their lives. Beaten down by the demands of wilderness travel, the party doesn't always agree with the dictates of its officers. Cultural conflicts arise not only in the face of the native populations they encounter, but also within the Corps of Discovery itself. Calling the Wind imagines each man's expectations, fears and longings, as they head home from a journey that has been - and still is.