A married couple, after a life time of work and bringing up a family, retire and awaken to the fast changing world around them, the habitual nature of their relationship, and what they have left.
The children Sonja and Helmut Schmitt have lost their parents in a car accident. At first, their grandmother takes over the supervision and care of the two.
When the seaside community of Amity finds itself under attack by a dangerous great white shark, the town's chief of police, a young marine biologist, and a grizzled shark hunter embark on a desperate quest to kill the beast before it strikes again.