The relatives of those missing on Uritorco Hill travel to Capilla del Monte, Córdoba, to investigate the area in search of answers. With them are a parapsychologist, a UFO expert and a documentary filmmaker. In a mansion on the slopes, they have to fight for their lives, faced with the attack of the evil entity that returns to finish its disastrous work.

In February 2010, a documentary filmmaker clandestinely entered the Uritorco hill, in the province of Córdoba. His intention is to film his adventure in the forest. Once there, he meets Adriana, another walker. Together they try to have a good time but, on their way, they encounter soldiers who are looking for the remains of a UFO crash. They drag them through the night while a mysterious being corners them to kill them all.

The militia discovers an anarchist cell in Burzaco and decides to test their new weapon: an army of computer-controlled zombie mutants. They were created from extraterrestrial DNA found on a crashed asteroid in Monte Grande. Everything goes according to plan, until a technical error unleashes insane carnage.