1941年的陪都重庆,战时最重要的军工企业第50兵工厂突然遭到了日军毁灭性的轰炸,而引来敌机的正是被提前安置在厂区内的一个制作精巧的发射信号装置。经过多方查证,在此前进入该区域的只有一个电影摄制组。特工高泽林在中共地下党的帮助下受命打入剧组,必须在“国共高层会议”? Chongqing, the capital of 1941, suddenly suffered the devastating Japanese bombing of the 50th Arsenal, the most important military enterprise in the war, and led to the enemy plane being a sophisticated signaling device installed ahead of the factory site. After multi-party verification, prior to entering the area there is only one film crew. Under the help of the underground party of the Chinese Communist Party, Gao Zelin was called into the crew and must be held at the “KMT High-Level Meeting.”