Riders of The Purple Sage – Jim Lassiter roams from town to town in search for the man who drove his sister to suicide. While riding toward a mountain pass, he sees an heiress, Jane Withersteen, being harassed by thugs and steps in to help. A religious sect wants Jane to marry their leader, Deacon Tull, so they can gain ownership of her land. When he steps in to help, Lassister slowly begins to believe that a member of this sect is the man he is looking for.