A group of young American tourists, including the level-headed Jeff (Jonathan Tucker) and his girlfriend Amy (Jena Malone), along with their friends Eric (Shawn Ashmore), Stacy (Laura Ramsey), and the impulsive Mathias (Joe Anderson), embark on a carefree vacation in Mexico. Their holiday takes a sinister turn when they befriend a German tourist who invites them on an expedition to an off-the-beaten-path archaeological site. Lured by the promise of adventure and hidden ruins, the group ventures deep into the jungle, only to discover a mysterious and ancient Mayan pyramid. What begins as a thrilling exploration quickly descends into a nightmare when they are confronted by a hostile local village that forbids them from leaving the site. As the sun sets, the friends realize they are trapped on the pyramid, stalked by an unseen, malevolent force that lurks within the ruins. Directed by Carter Smith, this claustrophobic horror-thriller masterfully blends psychological dread with visceral terror, as the group's bonds are tested and their survival instincts are pushed to the breaking point.