Plot
The Public Security Bureau intercept a telegram notifying foreign agents to retrieve the "110 secret". Shi Yan, head of the Reconnaissance Section, starts a campaign of counter-espionage, but one of his agents is soon killed on board a train.
| Writer | N/A |
|---|---|
| Director | Chen Fangqian & Liu Chunlin |
| Actor | Lei Ming, Ling Yuan, Liu Jia |
| Country | China |
| Production | Beijing Film Studio |