1939, Beiping Liulichang. Shen Heyun knelt behind the counter of Yajizhai to clean an imitation Ge kiln porcelain bottle, and his fingertips touched the hidden compartment at the bottom of the bottle - the micro storage space can only be opened three times a day. Each time it is opened, he will be dizzy for thirty seconds and his body temperature will plummet to 35 degrees. Kuroda Takasheng of the Special High School was playing with his shopkeeper's account book, Wang Puppet No. 76 Qu Fenggang was drinking Longjing opposite him, and the owner of the car dealership, Han Zijing, handed over a secret code. No one knew that this guy was delivering knives to three lines at the same time. Until that day, when he opened the storage space in the Japanese military warehouse to take out the list of cultural relics, he saw Shen Hifeng in the reflection of the lens - his brother, wearing the uniform of a military commander, with his gun pointed at the same target. The two brothers each have their own masters, but neither of them knows who the other's real master is. When the storage space was opened for the third time, he was dizzy and heard Kuroda say: Your brother is a communist. And you must catch him with your own hands.
