After a car accident, rural blogger Flora Chow time travels to 1942, where she nearly starves to death. She is taken to Nanjing by her "filial son", only to discover that her son is a secret agent of the Wang Puppet Regime! She secretly sends intelligence and rescues comrades behind his back, while he investigates her background and guards against exposure behind his mother's back. She has no idea that this son is an undercover underground party member using a fake identity; he has no idea that this "mother" does not even have the original host's memories. A pair of fake mother and son, each hiding secrets, testing each other, are both fighting the Japanese under the noses of the Japanese puppet regime. As the Japanese puppet forces close in step by step, can this family recognition drama turn from mutual suspicion and deception to life-and-death protection?
