在世界各地报告了天空中奇怪的类似号角声后，一名志愿记者与他最好的朋友踏上了调查之路，但很快他们发现自己面临着可怕结果的遭遇。

After strange trumpet-like sounds in the sky have been reported at locations around the world, a wannabe journalist sets out to investigate with his best friend, but they soon find themselves facing an encounter with terrifying results.