Spoiler | Chinese Drama: 孤战迷城 LOST IDENTITY (International Version Title)

In 1945, when the War of Resistance Against Japan ended, the Japanese army secretly transported a large number of poison gas bombs to China. Ou Xiao'an, a top military agent, is injured while escaping from "810", a poison gas research institute. He was accidentally saved by Tan Moqing, who is also an agent. When he wakes up, he finds that he has lost his memory for almost four years. In the process of exposing the Japanese conspiracy, Ou Xiao'an and Tan Moqing worked together many times, finally tearing off the mask of Japanese spies and at the same time discovering their identities as members of the underground party. However, a bigger crisis also awaits them. Where are the research materials of "810" and the location of the hidden gas bomb? Facing many dangers and obstacles, how should this brave group of men struggle forward?