1948年(nian)冬震驚中(zhong)(zhong)外(wai)的淮(huai)海戰(zhan)役打響了老支前(qian)模范耿(geng)(geng)東山(shan)（達奇 飾）從(cong)膠東解放(fang)區帶(dai)(dai)出一支小(xiao)車(che)隊奔赴淮(huai)海前(qian)線有(you)的推著彈藥(yao)有(you)的推著給養一路(lu)上(shang)紅(hong)旗招展(zhan)浩浩蕩蕩小(xiao)車(che)隊指導員耿(geng)(geng)春(chun)梅（呂亞林 飾）是耿(geng)(geng)東山(shan)的養女她帶(dai)(dai)領民工們冒著槍林彈雨繞過敵(di)人密集的火力網(wang)直接(jie)把彈藥(yao)送到我軍雷鳴（葉志康 飾）連(lian)長的陣地保障(zhang)了阻(zu)擊戰(zhan)的進行(xing)送糧(liang)途中(zhong)(zhong)支前(qian)民工又遭遇地主(zhu)鄭子(zi)成（李(li)頡 飾）率領的竄(cuan)匪耿(geng)(geng)東山(shan)與之進行(xing)了勇敢斗爭并使分散多年(nian)的雷鳴、耿(geng)(geng)春(chun)梅兄(xiong)妹戰(zhan)地重逢1949年(nian)元旦毛(mao)主(zhu)席(xi)在新年(nian)賀詞中(zhong)(zhong)發出“將(jiang)革命進行(xing)到底”的號召(zhao)耿(geng)(geng)東山(shan)率支前(qian)民工參加渡(du)江戰(zhan)役直撲南京國民黨老巢......