在邻里产生的一场悲剧后，两个处于芳华期的兄弟面临着改变的兄弟情，天然的神秘莫测，以及他们终有一死的实际。该片通过扭曲的青少年视角来探讨美国乡村生存。

After living peacefully in the caverns of a small town, a stranded group of aliens turn deadly as they fight for their existence, betraying the compassionate chief of police who has protected them for 28 years.