-When a tour company operator turns up dead, a surf gang who believe that he brought sharks to their territory seem like the likeliest suspects.
-But when a human arm turns up in a shark's stomach, the team is led to a group of fishermen, the real killers.
-The teams discover that the fishermen encountered a lost shipment of drugs in the ocean, and took it for their own; they murdered the tour guide for witnessing their crimes, then turned on each other until only one fisherman remained.
-The team is ready to bust the remaining fisherman as he attempts to complete a drug deal...only to be busted themselves by a rival drug gang, who take everyone hostage.
-Thanks to the intervention of Kono, the team wrestles back control of the situation, subduing the gang and arresting the fisherman.