David Stone, his ex-girlfriend, Sara, and six other youth, five men, one with a morbid fear of bugs, and a woman, decide to go to the Shankali, Hyderabad, India to explore an underground cave. At the outskirts of the city, they are met by their tourist guide, Kafi, and taken several miles underground. This is where their trip will turn into an nightmare as an underground quake will block their return path, virtually burying them amongst giant centipedes.