In an underground facility, five scientists wake from cryosleep with no memory of who they are or how long they've been asleep. They soon make a shocking realization: a killer is hunting them down there, and may even be hiding among them.。斯卡格拉克海峽位於丹麥、挪威和瑞典之間。該處波濤洶湧,令人聞之喪膽,不過水流也帶來養份,為魚類提供食物。這裡有勤勞的蟹、步行的魚和極具創意的甲殼類動物。其中一條河更是三文魚洄游地點。。