When Cy Bellman, American settler and widowed father of Bess, reads in the newspaper that huge ancient bones have been discovered in a Kentucky swamp, he leaves his small Pennsylvania farm and young daughter to find out if the rumours are true: that the giant monsters are still alive, and roam the uncharted wilderness beyond the Mississippi River.

West is the story of Bellman's journey and of Bess, waiting at home for her father to return.