Plot synopsis: In 1942, Huo Fei, a patriotic overseas Chinese businessman, returned to Shanghai and married Xia Meng Yao, the daughter of the big entrepreneur Xia Peng Ju. Luo Yun Kui, a member of the Communist Party of China, returned to Shanghai with Huo Fei. Under the arrangement of the organization, he hoped to use the shipping business of the Xia family to transport a batch of scarce medicines to the mainland. When the medicines were about to be shipped, they were seized by Nobunaga Kimura, the captain of the Japanese military police stationed in Shanghai.