Un grupo de militares de élite salen a explorar un desconocido abismo sin saber que la peor de sus pesadillas les espera en las profundidades de la tierra. ¿Conseguirán salir con vida del oscuro laberinto en el que se han adentrado? Three friends - Adrian, Charlotte and Viktor - head out into the Norwegian wilderness to explore a cave. They are all experienced at this sort of thing and have planned well. Relationship issues - Charlotte is with Adrian but she and Viktor used to be a couple and he still has feelings for her - complicate the expedition. Moreover, someone seems to be following them, even in the cave. INFORMACION ADICIONAL: - CALIDAD DE AUDIOS: NORUEGO 5.1 ESPAÑOL LATINO 5.1 - EDICION ORIGINAL Y MENU ORIGINALES - PG-13 - GENEROS Y SUBGENEROS: Aventuras. Thriller - SCREEN: Widescreen