天外来客1976

　　影片的故事背景设定在虫兽与人类20年持久战之后的一次偷袭。面对这一前所未有的灾难，人类战警挺身而出，与异形虫兽展开了一场生死搏斗，誓死守护人类家园。

　　在不久的将来，一艘太空探索船在一个未知的星球上坠毁。当他们发现这个星球上居住着巨大的恐龙时，他们很快就会遇到一些最可怕的恐惧

　　That day is seared into the memory of every human being on the planet: the day the world changed. First came the attack on the Philippines. Within days they spread, as though appearing out of nowhere, striking out at more islands, forging a foothold in the South Pacific. Then came the first attack on U.S. soil - Los Angeles - and the reality became clear: our world was at war once again, but this time with an enemy from beyond our galaxy. Now, months later, the fate of the world hangs in the balance as a mission to strike at a key enemy installation deep in enemy territory goes terribly wrong, and the Marines of the 15th Expeditionary Unit are scattered across the island of New Britain, leaderless, and facing impossible odds. Pacific Theater is the story of those Marines: fresh recruits who journey from their homes across the Pacific to the front lines. It is the story of John Blake, a charming Californian surfer who must find the strength to become a leader, Tracey Gleeson, a physics...

　　故事发生在1870年的英国，传闻中海怪的出没的消息惹得人心惶惶，各国政府都排遣除了军舰在大海上巡逻，哪知道这些军舰均被海怪给击沉了。阿龙纳斯教授（Dan Hanlon 饰）和他的助手康赛尔成为了海难中的幸存者，同时保住了小命的还有鱼叉手尼德（Curtis Benton 饰），一行人被鹦鹉螺号潜艇救起，他们也就此认识了潜艇的主人尼莫船长。
　　尼莫船长久仰阿龙纳斯的大名，把他当做上宾接待。但是船长暴躁的个性和激进的手段让阿龙纳斯明白，此地不宜久留。尼莫船长向阿龙纳斯展示了自己多年来苦心钻研的研究成果，亦带他畅游神秘的海底世界，但阿龙纳斯的脑袋里只有一个念头，那就是逃走。