The 7-year-old girl Zhang Wang and her father Zhang Guohua depended on each other. Although their lives were poor, they were still very happy. One day when Zhang Wang suddenly had a nosebleed, he went to the hospital for an examination and found out that he was diagnosed with acute leukemia.

Several members of a Nationalist Chinese Army unit that is trapped between Japanese forces and another Chinese unit take revenge when their unit is almost wiped out.