In 1945, Guangdong Communist Anti Japanese guerrilla captain intelligence work of Zhong Tiehan and Xu Xiaoyue was ordered to go to Hongkong to rescue the captured by the Japanese and the British secret agent White. The Kuomintang juntong agent group Wu Renfu and Japanese spy chief Tsuguchi Mi also in tracing the whereabouts of White, because White hands with the important information of British arsenal. Zhong Tiehan, Wu Renfu, Jin mouth syndrome in three when youth once together in Chinese learning military affairs, White was their teacher, but the adult each took a different road, three personal friends and classmates in the fall before a different faith. Zhong Tiehan sneaked into Hongkong, and Tsuguchi Mi launched a life and death struggle against the enemy, undercover, the successful implementation of the Japanese intelligence organization. Zhong Tiehan took Xu Xiaoyue's love, and success for the important information. After the Japanese surrender, Tsuguchi Mi WeiZui abscond, Zhong man pursued, finally let Tsuguchi Mi arrested.