1947年底,东(dōng )北(✒)全境(jìng )解放前夕(🐌),四野(🌰)某部侦察营长燕双鹰奉命组织(🔧)一支小分队,潜入天津市(🗼),设法搞(gǎo )到(🎾)守(shǒu )卫天津(⏬)的国(🎏)民党军队作战方案,绘制军事布防图以(yǐ )及兵力部署,为大军解放天(🏐)津铺平道路。燕双鹰从侦(🍮)察营挑选了六(🚑)名骨干,化装成溃逃(táo )的国(guó )民(🌙)党(dǎng )散兵,混(🥁)上(shàng )由营口开往天津(jīn )的轮船(chuán ),然(rán )(🎛)而(🌊)轮船被劫(💻),燕双(📙)鹰凭借机智勇敢(gǎn )(🤸),救出在押(yā )士(shì )兵,击(jī )毙劫匪,夺回(🤷)客轮(lún )。到达(dá )天津后,燕(yàn )双鹰率领小分队一边(biān )暗中绘制(🕯)城防图,一边乔装改(💔)扮开起(qǐ )了汽车修理(lǐ )厂,与当地黑(hēi )帮(bāng )势(⛏)力几(jǐ )番争斗,终于(🌼)赢得了黑帮头子袁文才的信任,而掌(zhǎng )(🔍)握(😙)国民(mín )党军(🔤)作战(zhàn )方(📸)案(àn )和兵(bīng )力(♌)部署的作(🍽)战(🏃)厅(tīng )(🔞)长段文宏(hóng ),正(🔙)是(🌱)袁文才的把兄(💣)弟(🔥)。就(jiù )在燕(⏳)双鹰凭(píng )准备盗取(🕕)机密文件时(shí )(🚻),他的(de )身份竟(jìng )然暴露了,最终燕双鹰(yīng )凭(😉)借(🚤)智慧(huì ),摆脱困境,消灭敌人,将机(jī )密(🔍)资(🌲)料(liào )送(sòng )给(🚪)了大(🐱)部(bù )队。