1947年(👷)底,东(⛲)北(běi )全境(🥇)解(jiě )放前夕,四野(yě )(🌰)某(🃏)部侦(zhēn )察营长燕(yàn )双(shuāng )鹰奉命组织一支小分队,潜入天(tiān )津市,设(shè )(🥩)法搞(😧)到(🎾)守卫天津的国(🎏)民党军队(duì )作战方(🚤)案(àn )(🖲),绘制(🕔)军事布防图以(yǐ )及兵力(lì )(🕯)部(bù )署,为大军解放天(tiān )津铺(🐖)平道路。燕(yàn )双鹰从侦(🍮)察营(yíng )挑选了六(liù )名骨干(🕕),化装成溃逃的国(guó )民党(📎)散兵(bīng ),混上由营口开往天(tiān )津的轮船,然而轮船(chuán )被(bèi )劫,燕(yàn )双鹰凭借机(jī )智勇敢,救出(chū )在押(🙀)士兵,击毙劫匪,夺回客(kè )轮。到达(dá )天津后(😍),燕双鹰(yīng )(🏯)率领小分队(🐀)一边暗中绘制城(chéng )防图,一边乔(💝)装(zhuāng )改(💔)扮开(kāi )(🥊)起了汽车(chē )修(xiū )理厂(🦇),与(yǔ )当地(dì )黑(🐛)帮势力几番争(zhēng )斗,终于赢得了(📟)黑帮头(😝)子(zǐ )(🔈)袁文才的信任,而掌(🔍)握国民党(📛)军(🔤)作战方(fāng )(📸)案和兵力部署的作(🍽)战厅长(zhǎng )段文宏(🔎),正(🔙)是袁文(wén )才的把兄弟。就在(zài )燕双鹰(🚽)凭(píng )准备盗取机密文(wén )(🎦)件时,他的身份(🛃)竟然暴露了,最终(zhōng )(✖)燕双鹰凭借智慧,摆脱困境(jìng ),消灭(miè )敌人,将(🔬)机密资料送(🈂)给(🚪)了大(🐱)部队。