圣诞假期临近，居住在悉尼的格蕾丝（戴安娜·格雷恩 Diana Glenn 饰）和丈夫亚当（安迪·罗德雷德 Andy Rodoreda 饰）及她的妹妹李（梅芙·德莫迪 Maeve Dermody 饰）前往澳大利亚北部——一个有鳄鱼出没的生态公园度假。公园内人潮攒动，欢乐气氛四处蔓延。这三个酷爱冒险的人相中了死水巴里河，于是决定次日向那里进发。他们错过了开往巴里河的游船，于是乘坐当地人吉姆（本·奥克森伯德 Ben Oxenbould 饰）的摩托艇驶往目的地。风和日丽，清爽时节，他们一心欣赏优美的自然风光，却完全忽视危险的存在。突然，小船遭到鳄鱼袭击，吉姆落水，格蕾丝他们就这样被困在了这个隔绝之地…… 　　本片根据真实事件改编，并荣获2007年墨尔本地下电影节最佳摄影和最佳导演奖。While on vacation on Northern Australia, Gracie, her husband Adam and her younger sister Lee decide to take the Blackwater Barry tour in the swamp for fishing. Their guide Jim uses a small motor boat and takes the tourist along the river to a remote spot. When they stop, they are attacked by a huge crocodile that capsizes their boat and immediately kills Jim. The three survivors climb a tree and when they realize that help would never come to rescue them, they decide to try to find a way out of their sheltered location. However, in the muddy water, their boat is flipped and the crocodile stalks the trio under the water.