The film is set against the backdrop of the Great Victory of Pingxingguan, and tells the story of Zheng Zhong, a cryptographer who was surrounded and hunted down by the Japanese for his crucial role in turning the tide of war.
The film tells a warm and realistic story, thinking and facing the ultimate problem that every ordinary person will face-imagining that death may come at any time, the only thing we have to do is love and cherish.