This drama tells the story of the anti-Japanese war in Macau during the "isolated island" period from 1942 to 1945 during World War II. After the fall of Hong Kong in December 1941, Macau became an important port and international intelligence center for the transfer and exchange of strategic materials from various countries, and was pushed to the forefront. The Portuguese Macau government was called "neutral", but in fact it allowed the Japanese army's Ze Rongsaku spy agency to run rampant. Patriotic Chinese people such as Ho Yin, Ma Wanqi and the underground Communist Party of China Ke Lin united their compatriots with a strong sense of patriotism and responsibility, and gathered the strength of Macau Chinese communities such as the Chinese General Chamber of Commerce, Kiang Wu Hospital and Tung Sin Tong to fight hard. In times of crisis, they found that only the Communist Party of China could save China and bring new hope to the Chinese nation. Patriotic Chinese in Macau and the Communist Party of China worked together to fight wits and courage with the Japanese invaders on various fronts such as financial warfare, intelligence warfare, and material warfare, and achieved major victories again and again. Macao's anti-Japanese and national salvation movement not only helped Macao compatriots to survive the difficult "turmoil" years in Macao's history, but also raised a large amount of anti-Japanese materials and funds to make important contributions to supporting China's war of resistance and the world anti-fascist war.