The services of shark killer Chase Walker have been engaged by his brother Jake, the head of a West Coast crime ring. The gig: kill the black-finned shark that swallowed a valuable diamond during a gang transaction. Enlisted to keep an eye on Chase is Jake's colleague, Jasmine. But Chase and Jasmine's relationship deepens with the threats from a rival crime boss: bring the diamond to him or die. Soon, loyalties will shift, and Chase will learn that trusting in blood is for suckers. Now, it's crime boss against crime boss, brother against brother, and man against nature, as Chase strives to rescue Jasmine, save his own life, and track down the great black-finned shark that will be the greatest challenge of his career.
A shark exterminator must retrieve a rare diamond from the stomach of a massive black-finned white shark; however, the powerful local crime lord has, too, set his sights on the gem. Will the fearless shark killer live up to his reputation?