1940年3月，汪伪政府宣布成立。侵华日军在上海大肆搜捕抗日志士，汪伪组建由前国民党军官毕忠良担任处长的“特别举动处”助纣为虐。不时潜伏在毕忠良身边、代号“麻雀”的中共党员陈深，与组织暂时失掉联络。 置身虎视狼顾的险境中，陈坚信仰坚决，冒死营救上线“宰相”及抗日志士。毕忠良老奸巨猾，虽与救命恩人陈深“情同兄弟”，却对其发生疑心，设重重圈套步步紧逼。“宰相”牺牲后，陈深终于找到新上线“医生”并授命拿到日军代号为“归零”的重要作战方案。陈深的昔日恋人徐碧城，与另一国军情报人员唐山海假扮夫妻潜伏进特别举动处，在屡次举动中给陈深制造费事和危机。智计过人的陈深身处连环杀机之中，巧妙应用日本鬼子、汪伪分子等各派权利之间的巧妙缝隙，同时也付出了庞大的代价，最终成功地获取了“归零”方案，挫败了日本侵略者的阴谋。 March 1940, Wang puppet government announced the establishment of. The Japanese invaders in Shanghai by searching for the anti-Japanese, Wang founded by former KMT officer Bi Zhongliang served as director of the "special operations" weihuzuochang. Has been lurking in the side of Bi Zhongliang, code sparrow of the Chinese Communist Party, and the organization temporarily lost contact. The tiger in danger watchout, Chen deep faith, risked his life to rescue the line "prime minister" and the Anti Japanese fighters. Bi Zhongliang and Chen Jiumingenren old, crafty person, although deep "hisstep brother", but to doubt the set traps step by step. "Prime minister" after the sacrifice, Chen deep finally found a new on-line "doctor" and ordered to get the Japanese dubbed "an important battle plan to zero". Chen deep lover Xu Bicheng, and another military intelligence officer Tang Shanhai disguised as husband and wife latent into special operations, in a number of actions to make trouble and Chen deep crisis. Chen Zhi count extraordinary deep in serial murder, clever use of the subtle gap between Japs, Wang molecules of various forces, but also pay a heavy price, finally succeeded in obtaining the "zero" plan, defeated the Japanese invaders conspiracy.