Nonton Three Black Triangles (1977) Sub Indo

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.

• Thriller
• Action

• Lei Ming
• Ling Yuan
• Liu Jia
• Ping Zhang
• Bi Jianchang
• Qin Wen
• Cao Cuifen
• Zhang Yan
• Fang Hui
• Lin Li