In the movie "Two Mules for Sister Sara", Sister Sara was nearly raped by three gangsters while traveling alone to the west. Fortunately, cowboy Hogan came forward to save her. Hogan was going to a French army station to do survey work, and now he decided to be Sarah's bodyguard and escort Sarah. But Sarah has to pay back, he has to provide information on the internal situation of Hogan's French garrison.
The two gradually became good friends along the way, but it also made Hogan more and more curious about Sarah, because Sarah did not behave like a nun. Not only does she speak foul language, smoke cigars and even drink alcohol, but what secrets does Sarah have in her heart?
