 In Caribbean Sea, the diver Jared (Paul Walker) and his girlfriend Sam (Jessica Alba) have a simple life, aiming at finding a treasure, but without money to buy the necessary ship and equipment. When Jared s friend, the egocentric and selfish young lawyer Bryce (Scott Caan), and his new girlfriend Amanda (Ashley Scott) arrive in the island to spend a couple of days with them, they dive together and accidentally find a wrecked airplane loaded with cocaine, and evidences of a sunken boat with a treasure. Afraid of losing the treasure for the arrogant hunter Bates (Josh Brolin), Bryce tries to convince Jared and Sam to negotiate a small part of the drug to raise the necessary money for the expedition, but the correct couple does not accept the proposal. Bryce and Amanda decide to deal themselves with a drug lord, jeopardizing the life and integrity of Jared and Sam.