The context of the book is July 7th, 1937, the beginning of the so-called second Sino-Japanese war. In fact, it was the continuation of the invasions that had started in 1895 and 1931. The book shows how two men, Dr. Norman Bethune, MD and Father Prosper Bernard, S.J., both left Canada in January 1938 to help China. They had such a love for China to the point of dying for the Chinese people during the cruel invasion of China by Imperial Japan. It shows also the role of other important foreigners in China from 1937 to 1945 and how the roles of missionaries changed after July 7th, 1937.