Tyler Matthews is desperate for change. Sick of his life and plagued by alcoholism, he makes the decision to divorce his wife, sell everything he owns and travel the world to try and find focus and rid himself of his addiction. Eventually arriving on the sun drenched shores of Australia and still plagued by his demons, he has spent all his savings and is facing the prospect of having to return to his old life. It is here that he meets two men with an outlandish story about a horde of sunken drug money in an area known as the Devil's Triangle - Australia's answer to its Bermuda namesake and said to be the lair of a terrifying monster of the deep. Offered a share of the fortune if he helps retrieve it, Tyler agrees to go with the men to the location, sceptical and thinking only of prolonging his journey of self discovery. He will learn, however, that this particular urban legend is real, and they encounter a giant of the seas, the previously thought to be extinct Megalodon which makes its home within the area of the Devil's triangle. Barely escaping with their lives, the three men wash up on an isolated island - no more than a rocky outcrop with no vegetation, fresh water of food sources. As desperation to survive intensifies, horrifying decisions will be made that will illustrate how man is sometimes the most violent predator on earth and when left with no option will do anything, even the unthinkable, in order to survive.