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.
Production companies：
Wilfried Ackermann Filmproduktion
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Active Entertainment
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Castel Film
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Nu Image
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Sci-Fi Channel
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Overview：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.
