西夏王造反，佘太君差杨文广、杨金花进京打探。杨文广校场比武，刀劈王伦。宋王赐印命其母穆桂英挂帅出征。穆桂英先不愿挂帅，经佘太君劝勉，念及国家危亡，抛弃私愤，顿然振奋，慷慨誓师整肃军纪，率领大军出征。Mu Guiying is a famous fictional female hero from the Song Dynasty. This Chinese opera focus on the battle she bravely fought for her country at the age of 50.
