Old David Findley, pauper and idealist, cherishes the ambition of turning a waterfall to account and making millions. By the town folk he is considered crazy, but Lois Sinclair, an intuitive young girl, and Jasper Randall, a young engineer, are kind to him. Old David's chimerical millions become real, and are the cause of his murder. Young Randall is accused on circumstantial evidence, but the real criminal confesses. The young people's romance comes to a happy conclusion and a substantial legacy from old David assures their future comfort.