A group of young intellectuals return to the city after the Cultural Revolution.

During the War of Resistance Against Japanese Aggression, the Kuomintang negotiated cooperation between the Kuomintang and the Communist Party while also asking their Ministry of Defense to secretly formulate a plan for attacking the Communist army, codenamed "A-14". Unexpectedly, Japanese spies stole this plan in a vain attempt to blackmail the Kuomintang into defecting to Japan. The Ministry of National Defense immediately organized a "Black Phoenix" operation to recapture the "A-14" plan, and sent officers under the pseudonym "Black Eagle" to carry it out.

The love story about a poor cleaner and a girl who failed in the entrance examination to college.