密室中的少女

　　外星人侵占了地球，人们被迫逃到地底下的巨型地堡避难。S.U.M.1是一个忠诚的战士，他被送到地面上来拯救幸存者并每天汇报情况。他的任务就是守卫人类的自我防御区不让外星人靠近，然而这每天的例行任务却逐渐成为他的噩梦，令人恐惧的声音在树林里回荡；基地每日都受到频繁的攻击；塔内的电力供应出现故障；修理工却迟迟不出现。他的上司也从未告诉过他有关上一任的事。孤独感与妄想症慢慢侵蚀了他的理智。难道外星人真的埋伏在森林里吗？还是S.U.M.1已经被折磨到精神错乱了？

　　In the year 2961, the time is after humanity and nature has recovered the land. A hunter named Cygnus is called to rise above his duty. He provides for Last Arc, a once nomadic band of survivors in need of food and water that is now growing scarce. The answer must be found before a group of outlandish Heretics descend upon them. Cygnus must voyage across the treacherous landscape to defend his people. Sent by Nova, the matriarch of the band, she acts based on her vision for Cygnus to find a seed of hope. The future of Last Arc is for him to discover, Cygnus ventures into a hostile landscape in search of an answer for his people. On this journey of encountering many traps and dangers, Cygnus discovers what has been hunting him is his identity.

　　一个异形在美国流窜，为了得到它想要的，它杀掉所有挡它路的人，并且用他们的身体作为新的藏身之所，它不断追寻的是生命的能量，然而另一个借用了一个死去的FBI探员身体的异形对它紧追不舍，无数无辜的人们在这场追击中丧生

四名周末露营者被武装民兵追捕。