公元2500年，地球两极冰川大量消融，地球成了一片汪洋。人们只能在水上生存，建起了水上浮岛，泥土成了稀有之物。一天，来了一个孤独的海行者（凯文•科斯特纳 Kevin Costner 饰），他用了一罐泥土换了淡水和番茄苗。正当他要离开时，当地人发现他竟然长着鳃和蹼，认为他是怪物，把他关了起来，准备过两天将他处死。时日，海盗袭击了浮岛，海伦（珍妮•特里普里霍恩 Jeanne Tripplehorn 饰）和她的养女伊萝娜（蒂娜•米乔里诺 Tina Majorino 饰）没能赶上出逃的救生船，她们救出了海行者。海行者凭着过人的机智和勇敢，带着海伦和依蒙娜逃了出来。原来，海盗的目标只是伊萝娜，依蒙娜的身世藏着一个惊人的秘密……
继人类大面积灭绝后，一名由机器人母亲抚养大的少女和另一名人类相遇，整个世界观也因此发生了动摇。
随着末日的无情逼近，生活在数百万年后的最后一批人类向现在的人类发出了求救和警告的信息，同时也是一个关于进化、衰落和希望的史诗故事。
新妈妈与隐藏在内心的邪恶作斗争，因为她通奸的丈夫隐藏了一个可能导致人类灭绝的黑暗秘密。
The world is ruled by spirits, goblins, and all manner of strange creatures. Human beings are persecuted, to the very point of extinction. One day, a golem and a lone human girl meet. This is a record of the pair, one a member of a ruined race, the other a watchman of the forest. It tells of their travels together and of the bond between father and daughter.
A story of the bonds between those who fight, in a world pushed to its limits. On one of the countless parallel worlds that exist throughout spacetime, humanity has fought a decades long war against the BETA, hostile extraterrestrial invaders, using humanoid fighting machines called Tactical Surface Fighters. This is a story of how humanity lives and dies while on the brink of extinction...
