In the 29th year of the Republic of China, Hong Kong was in turmoil. Shen Fangzhou, on the surface, is an ordinary newspaper vendor on Queen's Road, but in fact, he is a traffic officer of the Hong Kong and Kowloon Independence Brigade of the Dongjiang Column. In the city where neon lights and gunpowder smoke intersect, he silently delivers important information about the success or failure of the Anti-Japanese War. Su Qingchuan, a nurse at St. Mary's Hospital, is the daughter of Su Mingyuan, the president of the Chamber of Commerce, but she hates her father's collusion with the Japanese. Medicines for wounded underground party members are often hidden in the medicine box. She struggles between the shadow of her family and the justice in her heart.
The shadow of Operation "Blossom" shrouded Hong Kong, and the iron hooves of the Japanese army pressed forward step by step. An accidental encounter intertwined the fates of Shen Fangzhou and Su Qingchuan. From their initial mutual testing to gradual trust, they formed a deep friendship amidst the war. When Hong Kong was occupied by the Japanese army, Su Mingyuan's true face was completely exposed. Su Qingchuan resolutely chose to break with his father and join the anti-Japanese torrent with important Japanese defense plans.