This movie is based on the true story, which happened in Shan-Dong Province of China during World War II. It is based on a collection of memoirs of the guerrilla members. Due to the fact that it happened during World War II and there was not much secrets, this movie is that it was more realistic than other movies in that many real names were used, and the actual site was not changed either like other war movies of the time. The drawback of the movie was that in the latter stage of World War II, the guerrilla force was developed into an impressive 400 plus members from its original beginning of 3, and it launched many major offensives against the enemy, but this part was not shown. The movie only concentrated on the time there were only several dozen members.

This movie is adapted from the novel Heroes in Tongbai. Xiao Hua, a sister of Zhao Yongsheng, is deserted by her poor family. He Xiangdong, a woodworker, adopts her and rename her He Cuigu. To steer clear of arrest by the enemy, Dong Hongguo, offspring of a revolutionary family, is renamed Xiao Hua so as to be adopted by her adopter. Later, Zhao Yongsheng's parents are killed by the enemy, he joins the Liberation Army. In 1947, when Zhao Yongsheng returns to his own village Tongbai, his sister Xiao Hua happens to find her brother. Doctor Zhou who works in the hospital of the army, adopts Xiao Hua without knowing she is her own daughter. He Cuigu has become a well-known guerrilla hero after she grows up. She doesn't recognize her brother Zhao Yongsheng when she carries him on the stretcher. After the war, Zhao Yongsheng, Xiao Hua and Cuigu meet each other happily; Dong Xiangkun and Doctor Zhou also feel happy to reunite with their own daughter after 17 years of departure.