Dave and the boys head for a popular dude ranch out west for a vacation. Once they get to their hotel, they discover that Sam Valiant is the room clerk. Hearing that Dave is attempting to create a western song, Valiant keeps pestering Dave to use one of the songs he's written and replace The Chipmunks with himself by using various disguises. Unable to stand him any longer, they quickly pack up and leave. Valiant finally finds himself a partner out in the desert.