Two young couples are on a lazy Mexican vacation-sun-drenched days, drunken nights, making friends with fellow tourists. Trapped in the Mexican jungle, a group of friends stumble upon a creeping horror unlike anything they could ever imagine. What started out as a fun day-trip slowly spirals into a nightmare when they find an ancient ruins site . When the brother of one of those friends disappears, they decide to venture into the jungle to look for him. . . 2007. and the terrifying presence that lurks there.