1945年在(zai)(zai)(zai)太平洋(yang)戰區節(jie)節(jie)敗退(tui)的(de)日(ri)(ri)軍(jun)(jun)為修建一秘密潛(qian)艇(ting)基(ji)地(di)突然強行將停在(zai)(zai)(zai)港(gang)口的(de)香港(gang)貨(huo)輪“瑪(ma)麗大嬸”號征用船上(shang)(shang)所有的(de)船員都被征為勞工(gong)(gong)在(zai)(zai)(zai)工(gong)(gong)地(di)非人的(de)待遇和險惡的(de)條件使(shi)不少工(gong)(gong)友相繼倒下工(gong)(gong)程峻(jun)工(gong)(gong)時日(ri)(ri)軍(jun)(jun)要將勞工(gong)(gong)全部殺(sha)死(si)為了沖出日(ri)(ri)軍(jun)(jun)的(de)魔掌工(gong)(gong)友們(men)與日(ri)(ri)軍(jun)(jun)展開殊死(si)搏(bo)斗船長洪達駕摩托艇(ting)沖向(xiang)(xiang)潛(qian)艇(ting)基(ji)地(di)潛(qian)艇(ting)及整個(ge)掩蔽洞被炸飛上(shang)(shang)了天(tian)在(zai)(zai)(zai)人們(men)焦急的(de)等待中(zhong)洪達奇跡般(ban)地(di)從火(huo)海中(zhong)游向(xiang)(xiang)了“瑪(ma)麗大嬸”號