IMDb72 votesMovieThree Black Triangles1977•1h 29m•Thriller, ActionThe 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.Top castView moreDetailsMore like this6.5309 votesIMDb 5.9443 votesIMDb 6.284 votesIMDb 6.3198 votesIMDb 61.2K votesIMDb 6.2253 votesIMDb 5.971 votesIMDb 7.176 votesIMDb 6.285 votesIMDb 6.6243 votesIMDb 6.9325 votesIMDb 6.258 votesIMDb
