Bargain tells the story about a high school girl and a middle-aged businessman who meet in a hotel room where she’s about to sell her virginity to him. As they engage in small talk, he starts to bargain her price down… until it’s fraction of what it was. All the while though, she’s plotting something different.
元朝未年,朱元璋率众反抗元朝统治,其部下沈天松企图将朱的布兵图献给蒙古王爷李察罕。李察罕率高手前往陕西接头,反元志士与陕西迎春阁客栈主人万人迷商量对策,并乔装打扮,严阵以待,准备捉拿内奸并夺回布兵图。李察罕也带人住进迎春阁客栈,沈天松献图后即被活捉。女侠黑牡丹前往李察罕 处盗取布兵图,却误取了另一文件;她的同党小辣椒在将文件放回原处时遭到杀害。李察罕查觉后亲自查看,双方斗智斗力,短兵相接,展开一场鏖战。