当Maddy Stern发现她的父亲在一次常规的观鸟旅行中失踪时，她和她的学院朋友跋涉到旷野找到他，只有最后到一个富有的科学家的荒凉牧场的鸟舍，在那里他们遇到一对巨大的，饥饿的 恐怖鸟被认为是灭绝了几个世纪。

  When Maddy Stern discovers her father has gone missing during a routine birdwatching excursion, she and her college pals trek out into the wilderness to find him, only to end up in a wealthy scientist's desolate ranch aviary, where they encounter a pair of giant, hungry terror birds believed to be extinct for centuries.