At the Shanghai dock occupied by the Japanese army, Jin Duobao, a low-level coolie, made a living by carrying goods. He struggled to survive every day under the whip of Fujita, the Japanese and puppet supervisor.
One day while transporting flour, he accidentally discovered confidential documents in a Japanese officer's briefcase. He was targeted by military commander Lao Lu and was forced to get involved in the whirlpool of intelligence transmission.
Relying on the half-baked Japanese he learned in a Japanese restaurant, Jin Duobao used "tuna sushi-style Japanese" to get through under the eyes of the Japanese army and unexpectedly gained trust.
He had to deal with the Japanese officers in the bathhouse, but also had to avoid surprise inspections by the special high school class, and staged a "flour bag spy war" in the steamy bathhouse.
From a passive participant delivering intelligence to the military, he gradually grew into a double-faced agent who was able to operate with ease in the Japanese and puppet agencies.
The anti-Japanese feelings of a low-level person in a special era.
