Lasca lives in the open and loves, with all the intensity of her Castilian blood, Harry, a dashing young cowman. In her jealous rage she wounds him and then takes him under her own cure and sacrifices for him, even to the giving up of life when it becomes necessary. She has taken him out on the plains. There is one horse between them when the cattle, frightened, stampede. Experience has taught them what to expect; they both mount and make a wild dash to get clear. Weakened by the wound received at the hands of the girl previously, he falls from the horse. As the cattle rush towards them she throws her body over the prone, unconscious lover. When the man comes to, Lasca lays across his body quite still. She has made the sublime sacrifice. He gouges out a grave and lays her to rest. The scene gradually fades out. The man has been telling the story of his own life to his friends and ends by saying, “And half my heart lies buried there, in Texas, down by the Rio Grande.”