新入伍(wǔ )的战(zhàn )(👷)士(shì )李正良(赵矛 饰(🏽))从小就有英(yīng )雄情结(🕸),他对(duì )水手长陈福海(孟(🆖)庆良(🐉) 饰(🌰))日常(cháng )训(xùn )练的苛求彼(bǐ )(🎾)有意见。一(🎲)次参加演练,由(😎)于李正良脑子里没(méi )有(yǒu )(🤷)敌情观念,受(shòu )到水手长(zhǎng )批评,心(xīn )里很不(bú )(🕌)服(🛺)气。解(🎫)放(🥞)大东岛的战斗开(kāi )始(shǐ )了,李正(zhèng )良立功心切(🔊),艇长(zhǎng )让(🌙)他(📎)跟水(🚣)手长(zhǎng )一起接应我侦(zhēn )察(chá )小组(❔),行(háng )动之前(qián ),水(shuǐ )手长告诉他此次任务一定要沉着冷(㊙)静(jìng ),万(wàn )不可(kě )惊动敌人,否则(🤷)后果难测。但缺乏经(💠)验的李正良(liáng )(🎋)过早暴(bào )露了目标,召致(zhì )(🌮)敌人火(huǒ )力(lì )围攻,关(💔)健时刻(kè )(🍑),水手(shǒu )长(zhǎng )果(🐾)断吸(😊)引(🈸)敌人火力,使李正良安全脱险,李正良(🐩)大为(wéi )感动。水手长不顾个人安(😙)危(🤥)的革命(mìng )(🔤)英雄主义品(🔷)质在实战中(🐞)教育(🏃)了李(lǐ )(🏴)正(zhèng )良,他开始思索个人英雄主义(yì )给战斗带来(lái )(🚽)的危害......