Lin Nansheng, a spy trainee, was selected to find the rat of the Kuomintang agency in Shanghai. He was forced to put himself into the cruel fight between CCP and Kuomintang.
Chen took Wang to the station as a bait to find out who the undercover really was. Whlie caging Wang in the hotel, two officers and a bank manager visited the hotel surprisingly.
Advancing with Plan Fengye. Wang orders Lin and Gu to assassinate traitor Chen. Zhu travels to the communist headquarters with Lin. Wang goes to a meeting in Qingpu district but is set up.
