在邻里发生的一场悲剧后，两个处于青春期的兄弟面对着变化的兄弟情，自然的神秘莫测，以及他们终有一死的现实。该片通过扭曲的青少年视角来探究美国乡村生活。

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.