A drifter from the East, having staked a claim near Boiseville, each night gambles away whatever gold he may have mined during the day, but Moll, a disreputable old woman who is herself addicted to gambling and a half-owner in the town's gambling establishment, makes him promise to end his habit. But Peter Gardner owns an adjoining claim to the Easterner's mine, and having seen that a vein of gold trails into his neighbor's property, is anxious to keep the Easterner at the tables. With the help of Moll's business partner, Dick Weed, Gardner tries to get the Easterner to gamble away his stake, but the young man refuses. Complicating the situation, Gardner's daughter Kate loves the Easterner, but he has become engaged to the wealthy Doris Wendell. However, when the Easterner discovers that Moll is his mother, the scandalized Doris breaks the engagement. Peter finally persuades the Easterner to stake his claim in a card game, but then Crazy Oby, an amnesiac since he received a head blow years before, regains his memory, recognizes Peter as the man who robbed him years before, and shoots him. Dying, Peter confesses that Oby is Kate's father, after which the Easterner and Kate start making preparations for their wedding.