Elder brother, Adam Andinnian, is secretly married to Rose Turner. To defend her from a man who is stalking her and making lecherous advances, Adam shoots him and is sentenced to life in prison in a penal colony. Adam's mother, who favors him, conspires to help him escape the penal colony. The escape is a failure, resulting in a violent shootout where Adam, a prison guard, and another prisoner all perish. One body is never recovered, but the men are presumed dead. Younger brother, Karl, is engaged to Lucy Cleeves, but her snobbish parents deem him unsuitable. The narrative follows the interweaving lives and the long-term consequences of Adam's imprisonment and the failed escape attempt.