This third film in the series follows a group of marine biologists attempting to capture a young great white shark that has wandered into Florida's Sea World Park. However, later it is discovered that the shark's 35-foot mother is also a guest at Sea World. What follows is the shark wreaking havoc on the visitors in the park.

这部引人入胜的纪录片回顾了受训表演的杀人鲸提利库姆的一生：在被圈养期间，这头虎鲸致使多人丧生。