两(liǎng )名潜水者(⛲)发现了昆(kūn )特(📒)小船(🐌)的残骸,并在拍照时命(mìng )丧鲨口(🤴)翌日,警察局长(zhǎng )(🥈)马丁·布(🍖)洛(luò )迪接到(dào )报告,有人在(zài )附近水域(🎏)发现了一艘(📼)无人(rén )游(yóu )(🖲)艇,布(🕔)洛迪指(zhǐ )(🎩)派手(shǒu )下进(🎡)行调查并找(zhǎo )回失(🔲)踪者的(🚉)水下(xià )摄影机。与此同(🥞)时,一名(✖)正在滑水的女子葬身鱼腹,驾(jià )驶(shǐ )快艇(tǐng )的女子(zǐ )将(jiāng )油箱抛向鲨(shā )鱼(yú ),并用信(xìn )号枪引燃,鲨鱼(㊗)燃烧起(qǐ )来,而(ér )快艇也在爆炸中四分五裂,不(bú )过,身负重伤的鲨鱼(🤷)还(👃)是逃(táo )脱了。因(yīn )(⛳)为找不(bú )(👺)到遇难(🤳)者遗(yí )体,布洛迪开(kāi )始心生(shēng )疑虑。一条鲸鱼在海滩(🥊)上(shàng )搁浅(🛎),布(🚗)洛迪(🦇)推测是鲨鱼袭击所致,海(🤷)洋生(🌪)物学家埃尔金(jīn )斯(sī )虽然持(🏒)怀疑态度,但她承(🔍)认鲨(🤥)鱼(yú )会被血液、运(yùn )(🥤)动和声(♌)音吸引。布(bù )洛迪认为可(🔎)能还有一条(🐖)大白鲨(shā )(🔫)存(cún )在(🔥)……