John Hogue, his wife, and their daughter Dora are saved from the Indians by the Mormons and taken into their community. Dora falls in love with Tom Rigdon, a youthful convert, but is desired by Elder Darius Burr who conspires to force Hogue into the sect in order to obtain his daughter. Burr informs Dora that her father will be forced to marry a second wife unless she agrees to marry the elder. Dora, ignorant that the ceremony has already taken place, agrees to the sacrifice but tells the sect, untruthfully, that she is not a virgin, disqualifying herself as a bride by Mormon law. When Hogue's second wife is brought to the house, Dora's mother commits suicide and Hogue, Tom and Dora are taken prisoner by the Avenging Angels, a band of masked Mormon militiamen. Left in the desert to die by the Avenging Angels, Hogue makes his way back in time to save his daughter from Burr's advances, and Tom and the three escape from the community.