A rowdy group of friends rent a houseboat and set off for an amazing vacation. Filled with the spirit of adventure, they chart a course as far as the houseboat will travel and come to land on a vastly unexplored, mountainous region. The group splits as eight of them continue forward, exploring much deeper into the vastly untouched terrain. They are rewarded with a paradise rarely seen: a beautiful island cove. Their fun is short-lived, however, as they are kidnapped and held hostage by a mysterious group of men. Meanwhile, a group of archaeologists also exploring the territory discover an undocumented species. This predator creature seems to be millions of years old, but has human characteristics. While the scientists toil away to uncover more about this unprecedented species, they too run into trouble. Little do they all know, the captors are not they only ones they need to fear. A mysterious presence begins to prey on the visitors and captors alike. They are caught in a war between good and evil. Their lives depend on who wins, the evolved beast or the spiritual guardian's powers protecting the island.