Samuel Alabaster, an affluent pioneer, intends to propose to and marry the love of his life, Penelope. In town he hires Parson Henry, a drunkard, to officiate it. Together, the two venture across the American frontier with a miniature horse named Butterscotch, a wedding present for Penelope.
During the journey, Samuel and Henry run into Rufus Cornell, who attempts to shoot and kill Samuel before running off. Samuel chases after Rufus, only for the latter to fall off a cliff to his apparent death. Samuel confesses to Henry that Penelope had been kidnapped by Rufus and Rufus’ brother Anton, and that he seeks to rescue her. Henry agrees to help him for more money.
Reaching the Cornell home, Samuel attempts to sneak around the property as Henry watches from afar. Anton exits the house, and Henry panics. He fatally shoots Anton in the head. Samuel rushes up to the corpse and shoots it some more.
Penelope exits the house and holds Samuel at gunpoint. Samuel attempts to propose to her but she rejects him and declares that she hates him and loved Anton. In grief, Samuel commits suicide. Penelope takes Henry as her prisoner before blowing up the house.
Venturing back toward the town, Penelope and Henry run into Rufus, who survived his fall and was able to track Henry and Penelope. Rufus attempts to take Penelope as his wife, but she rejects him. He then decides to murder her and Henry but is shot and killed with an arrow by Zachariah Running Bear. That night, Henry discusses his desire to learn of the Native culture and asks to join Zachariah on his journey. The next day, Henry and Penelope awaken to discover that Zachariah has left.
Penelope frees Henry, who hugs her and apologizes for what has happened. However, before Penelope leaves with Butterscotch, Henry spontaneously proposes to her. She throws a large stone in his face and rides off.