Five film students produced a documentary about the local zoo when the animals suddenly crazy: The reason is to fly a ball of light in the air and crashing to the horizon. Convinced that they had seen a meteor landing, students follow to document the way to the event with his camera. In an area of the forest, found a crater that burns. Since it is too dark to determine the film to pass the night in his van. Next morning miss any of them. Other students are just a trail of blood and fragments of what was his friend. You soon realize that something is hunting them, something not of this world.