It is 1804 - an historic year in America - and Meriwether Lewis, William Clark, and their Corps of Discovery set out on the now-legendary exploration of the Louisiana Purchase. Starting from St. Louis, they're hoping to reach the Pacific Ocean and then return. In this fictionalized biography, based upon the journals of Lewis, Clark, and other members of the team, readers meet Seaman, a 150-lb, Newfoundland dog and an unheralded member of the Corps. Seaman travels the long journey with the Corps, serving a key role in the expedition's success. He catches and retrieves game, protects the expedition from wild animals and hostile Indians, and proves a genuine friend. Come along with Lewis, Clark, the Corps of Discovery, and Seaman as they meet Sacagawea, survive near-death encounters with grizzlies and buffalo, cross the Continental Divide, and triumphantly reach the Pacific.