When a baby great white shark accidentally finds its way into a Florida theme park, the manager (Louis Gossett Jr.) decides to keep it as the centerpiece for a new exhibit. But he didn't anticipate that its angry mother would come looking for her child. As the deadly creature wreaks havoc, park employee Mike Brody (Dennis Quaid) works with his brother and girlfriend to destroy it -- with the assistance of two dolphins named Cindi and Sandi.