In a small rural community local police officers Zoe and Patrick begin their shift as normal but it soon becomes clear that something is wrong. Strange events unfold before their eyes, residents begin behaving strangely and mass suicide panic spreads amongst the community they are trying to protect. Zoe and Patrick realise they are under siege from alien machines as they become cut off from the outside world. They are forced to do battle against these uninvited visitors. With the help of some of the residents Zoe and Patrick begin unravelling the mystery and soon discover it is not all as it seems. Can Zoe and Patrick save their community and the outside world from extinction　　在一个小的农村社区，当地警察佐伊和帕特里克开始正(zhèng )常换班(bān )，但很快就清楚出了问题。奇怪的事情(qíng )展现在他们眼前，居民开始奇怪的行(háng )为，大规模的(de )自杀恐(kǒng )慌在他们试图保护的社区中蔓延。佐伊和帕特里克意识到，当他们与外(wài )界隔绝时，他们正受到外(wài )来机器的围攻。他们被迫与这些不速之客作战。在一些居民的帮助下，佐伊和帕特里克(kè )开始解开这个谜团，很快发现它并不像看上去的那样。佐伊和(hé )帕特里克能拯救他们的社区和外(wài )部世界免于灭绝吗？