The Third Generation.

When Alden Van Dusen, a third-generation member of a prestigious old New York family, is faced with the alternatives of allowing his firm to go bankrupt or becoming involved in fraud, he decides on suicide. As he is about to drown himself, Alden is attacked by a thug and, in the ensuing struggle, his assailant is killed. Seizing upon the opportunity, Alden changes identities with the dead man and drifts West, where he becomes an employee in his firm's mine.