Having lost most of his family to coal-mining accidents as a little boy, Curley Hines lives with his grandfather in the Appalachian Mountains of Wonder Gap, Kentucky. Ever since Curley can remember, Papaw has been giving him a word each week to learn and live. Papaw says words are Curley's way out of the holler, even though Curley has no intention of ever leaving.When a new coal boss takes over the local mining company, life as Curley knows it is turned upside down. Suddenly, his best friend, Jules, is interested in the coal boss's son, and worse, the mining company threatens to destroy Curley and Papaw's mountain. Now Curley faces a difficult choice. Does he use his words to speak out against Big Coal and save his mountain, or does he remain silent and save his way of life?