A slim and capable girl, a beautiful girl, was robbed by bandits to a small town in the west and was rescued and taken in by an honest herdsman "cousin-in-law". The beautiful girl, who was like a jade, was soon spotted by the "cousin" concubine Tang San. However, on the eve of the wedding, the helpless Xiu girl slept on the bed, and the "cousin-in-law" came to her at this time. Because of his dark hatred of Tang San, he was attracted by Xiu Girl's beautiful face.

Tells the tragic story of Mongolian herders in defense of their homeland against the invaders.