Three Black Triangles

Overview

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.

Cast

Lei Ming

Shi Yan

Ling Yuan

Yu Huangshi

Liu Jia

Yu Qiulan

Ping Zhang

Hong

Bi Jianchang

Lu Deqin

Qin Wen

Liu

Cao Cuifen

Zhang Yan

Fang Hui

Lin Li