在一个晴朗的日子里,玛丽(瑞雪·马尔文 Rachel Melvin 饰)带着两位好友珍(莱克丝·阿金斯 Lexi Atkins 饰)和佐伊(柯特妮·帕姆 Cortney Palm 饰)来到堂兄位于某个森林的小屋度假。珍不久前刚刚失恋,她们希望好友能在碧水蓝天的悠闲所在忘记所有烦恼和悲伤。女孩们快乐玩耍,无忧无虑,未过多久珍的男友山姆(Hutch Dano 饰)以及汤米(杰克·威尔瑞 Jake Weary 饰)、巴克(Peter Gilroy 饰)等男孩也尾随而至。这个假期看样子变得如此美好,可是恐怖的灾难却悄然而至。 此前,某医疗机构的废弃药品不慎流入山谷溪流,致使当地的河狸全部变成暴虐凶残、嗜血如命的怪物。死亡陷阱,无人能脱……。Artificial intelligence is infiltrating every level of the armed forces, from infantry on the front lines to command centers conducting global-scale operations. A terrifying behind-the-scenes look at this high-stakes issue, following military-funded scientists racing to build this technology and ethicists scrambling to awaken the world to its apocalyptic potential.。