A group of teenagers go on a excursion to the mountains. There, they are attacked by birds infected with a lethal virus. When the teens reach a nearby village, the haunting birds start passing their virus on to all the dwellers.

Two amateurish hunters are attacked by creepy birds in the woods. Meanwhile seven delinquents are camping in the forest with their counselor in a program of reintegration to the society. Suddenly they are attacked by the birds and the counselor dies and one of the youngsters is wounded. The brutal Johnson imposes his leadership by force over the others while they are hunted by the birds. Meanwhile ranger Garrett finds one of the hunters passed out in the forest and takes him to the hospital.—Claudio Carvalho, Rio de Janeiro, Brazil