In 1942, the War of Resistance Against Japanese Aggression was raging, and the smoke of gunpowder was filled. The front line is tug-of-war, and the rear is stormy. The living environment in the anti-Japanese base areas was difficult, and outside intelligence was urgently needed.
Wang Kai and Officer Li, two warriors, are sent on a dangerous secret mission. In the dim light, the two prepared to disguise themselves as vendors selling red dates to collect intelligence for the base.
Wang Kai picked up a shabby straw hat to cover half of his face, while Li selected plump and attractive red dates from the red date basket to ensure that they were not conspicuous in the market.
Early in the morning, the two rode bicycles and carried full of red dates on the road to the county seat. In front of the city gate, Officer Li whispered to Wang Kai: "I distract the attention of the puppet army, you deal with the Japanese soldiers, remember, everything must be natural." ”
Officer Li smiled and walked towards the puppet army, handed out a cigarette, and chatted in the local dialect to shorten the distance between them. At the same time, Wang Kai successfully eased the vigilance by communicating with the Japanese soldiers with a kind smile and not very fluent Japanese.
Inside the city, the two deftly observe their surroundings like cunning foxes. As night fell, the lights came on, and the two came to the Shunyi Inn, both to rest and look for opportunities for the latent comrades.
Wang Kai set up a stall in front of the door, and Secretary Li arranged accommodation. They act naturally and show a careful consideration of the task. As the days passed, although no signal was received, Wang Kai and Secretary Li waited patiently, believing that the comrades were cautious.
The duo actively used their time to gather information about the local area by chatting with the inn's guests. One day, Wang Kai learned clues about the puppet army's activities during a chat, showing that even insignificant conversations can contain important information.
With dates all but sold out, they realized they needed to reevaluate their plans. If there is no more contact, it is decided to return to the base to reformulate the strategy, unwilling to think about the overall situation.
On the muddy road after the rain, the two pushed their bicycles forward. Suddenly, the bicycle tire bursts, and after the soldiers leave, the stall owner who sells cold noodles returns in a panic, followed by the puppet army. In the case of a sudden situation, the two responded calmly and tried to resolve it peacefully.
However, the puppet army found the ** on the two of them, and the situation became grim. The leader of the puppet army asks about the destination, and Wang Kai and Officer Li weave a story about returning home in an attempt to defuse the crisis.
During the search, Captain Huang (the former leader of the puppet army) mysteriously asked where to buy dates, breaking the expectations of Wang Kai and Officer Li. Captain Huang untied the rope, and it turned out to be an underground party member with whom they were closely connected, Yang Zhongxin.
Yang Zhongxin passed on urgent information, the Japanese army assembled in Jiaodong Bay, and the two left quickly. Yang Zhongxin made the final sacrifice to ensure the security of the message. In the darkness of night, Wang Kai and Officer Li disappeared into the path, leaving Yang Zhongxin to face the possible severe consequences.