Du Xueyan is a young and determined anti-alliance fighter. Her husband Cao Zixuan was her college classmate. During the Northern Expedition, Cao was also a passionate young man. Later, he became mentally depressed and was forced by his father to serve in the Jiamusi Puppet Police Station. Du Xueyan was appointed by the party to use special family connections to return to Jiamusi to work for the Anti-Alliance. She quickly opened up the situation and cooperated with the five anti-alliance armies to make the Japanese and puppets restless. After completing the mission, Du Xueyan returned to the Anti-League and served as the instructor of the Women's Company. She led her sisters to persist in the Three Rivers Struggle, fought bloody battles with the enemy face to face, and grew into heroines. Finally, in order to cover the transfer of the large troops, Du Xueyan led the women's company to take the initiative to lead the enemy in the opposite direction. In the desperate situation, they would rather die than surrender, and eventually all died heroically.