The warlord Amin, who held power in the north, had long harbored ambitions of monopolizing power and unifying the country. In collusion with local tyrants, he dispatched spies to the south to act as moles, with the aim of launching a massive invasion when the time was ripe. The revolutionary forces in the south became aware of this plot and sent Tang Huang to the north to gather a list of the spies. Posing as a student studying abroad, Tang Huang carried out his mission but encountered unexpected challenges along the way.

大军阀阿敏割据北方，早有意独揽大权，统一全国，与土豪勾结之余，更派遣特务到南方当卧底，期望时机成熟，大举南侵。南方革命军知悉内情，派遣唐璜到北方探取特务名单。唐璜以留学生身分作掩护，在执行任务期间却遇...