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 … Clare Carey, Lance Guest, Sarah Butler, Jonathon Trent, Rebekah Kochan, Bill Posley, Brent Lydic Added on Amazon Prime 2020-12-17. Youtube Trailer