An experienced rescue team is trying to determine the location of the six women in mountain caves. Meanwhile, Sarah was found wounded, covered in blood of her friends in, a state of shock and with amnesia. She can’t clearly explain what has happened to the girls in the cave. Sheriff does not believe her and suspects her in murder. He forces her to return with him and rescue team to the cave, where the terrible events took place. They go deep into the cave further and further, until Sarah’s memory returns. She is insanely worried. Sheriff’s shot provokes the collapse of the cave. The group is trying to get out, but faces the hunger and wild tribe of predators.