After a surfer dies off Morro Bay, California on Christmas Eve, shark attack investigators Ralph Collier and Brandon McMillan use forensic evidence and eyewitness accounts to ID the suspected killer: an 18 foot great white shark.
Kun surffaaja kuolee jouluaattona Kalifornian Morro Baylla, tutkijat Ralph Collier ja Brandon McMillan tunnistavat epäillyn tappajan: se on kuusimetrinen isovalkohai.