The action of the picture takes place over five days - on the island of Emity, where a small resort town is located. In this quiet and sunny place occurred terrible tragic events, which began in the early morning, when the local police chief Martin Brody and his assistant find the remains of the body of a girl on the shore. She became the first victim of a great white shark, which appeared off the coast of Amity...
Every day the number of victims of the bloodthirsty shark continues to increase. Will the brave shark hunter, a veteran of the Second World War, fisherman Quintus on his ship to catch and kill a man-eating shark? Martin Brody and Matt Hooper, an expert from the National Institute of Oceanography, who has arrived on the island, join him on a dangerous sea expedition.