第二次国内(nèi )革命战争(✒)期间,国民革(🐌)命军第二(🃏)十(🕋)一(😘)军吉(🕸)鸿昌(达(dá )奇 饰(shì ))部,奉命(mìng )剿共。近日士兵开小(🥩)差现象(xiàng )(🎾)严重增加,吉鸿(❣)昌百思不得其(qí )解(jiě )。在(zài )一次演兵场(chǎng )上(shàng )审(🛍)问(wèn )(🎡)叛逃原因时,曾经忠心耿耿的老部下((🎿)张冲霄 饰)道(🙁)出原委,那就是不想再剿(🤷)共。吉(⏺)鸿昌闻言(🧚),思虑良久,他决(⏯)定(dìng )(😞)乔(qiáo )(🖲)装(zhuāng )进入(rù )苏区考察(🌊)。苏区党代(dài )表周光(guāng )远(✋)((🐑)左夫(fū ) 饰)从(cóng )(🙄)吉鸿昌坐姿上识破他军(🍄)人(rén )身份,并与他(tā )进(jìn )行推心置(💠)腹地(⛳)讨论,同(tóng )时(🕐)亮明共(🚴)产党的(de )(⚾)政(zhèng )治主(👣)张,吉鸿(❕)昌听(tīng )(💹)罢(bà )茅塞顿(dùn )开。一二八事变爆发(➡)后,被蒋(jiǎng )逼(🐨)出国门考察的吉(🌼)鸿昌愤然(rán )回国抗(🔈)日,蒋却诱逼他反(fǎn )共,吉鸿昌(📛)怒(nù )不(bú )可遏,毅然加入共(🥅)产党。不久(jiǔ ),吉鸿昌因伤被(bèi )捕,诱降不成,蒋(jiǎng )介石向他(tā )伸出了魔爪......