Betty Browne received word she will inherit a large legacy left her by an uncle, provided she goes to Dead Man's Gulch, Arizona, and marries the son of an old friend, whom she has never even heard of. She imagines him to be a rough cowboy and refuses until her chaperone. Miss Prim, prevails upon her to investigate before deciding. Far from being a westerner, Billy is an eastern college chap. He receives the same information as Betty, feels certain she must be an uncouth cowgirl, but Bunny. his tutor, advises him to see the affair through. By chance, Billy, Bunny, Betty and Miss Prim all take the same train, and after some amusing incidents, the four become well acquainted. The two young people fall in love, as do Bunny and Miss Prim. Bunny claims to be Billy Wells and Miss Prim, Betty Browne. The ensuing tangle convinces Betty she could never marry Billy, as she believes Bunny to be him, while Billy asserts he positively could not love Betty in the person of Miss Prim. The train stops at a station just before reaching Dead Man's Gulch and unknown to each other, the two young people get off, determined to go back east, on the platform coming face to face, and learning each other's real identity, Billy proposes on the spot. Betty accepts him and they make a wild dash for Dead Man's Gulch. On discovering the young couple have disappeared, Bunny and Miss Prim, who have become very good friends, are nearly frantic, but the lost ones turn up safely and there is a gladsome reunion. The coy Miss Prim whispers, "Yes," to Bunny's proposal. Betty nestles lovingly in Billy's arms, and soon the two happy couples are speeding back east on a double honeymoon.