Twins Suzy and Jessica visit granny Natty's dude ranch in the Wild West. The ranch has too few paying visitors and granny may have to sell the ranch to evil developer Bart unless "somebody" can help her. The twins also find the diary of their deceased mother

A story set against the Mountain Meadows Massacre, the film is based upon the tragedy which occurred in Utah in 1857. A group of settlers, traveling on wagons, was murdered by the native Mormons. All together, about 140 souls of men, women and children, were taken. Amidst this, two young lovers-to-be, one a Mormon and the other one of the doomed settlers from Arkansas, develop a relationship in an atmosphere of suspicion and rancor.