奎因（哈里森·福特 Harrison Ford饰）是一个粗鲁乏味的货机驾驶员，洛宾（安·海切 Anne Heche饰）是一个唠叨的职场女强人，二人有着自己各自的生活。但是，所谓千里姻缘一线牵，自从洛宾和未婚夫一起前来夏威夷度假，她和奎因之间的故事便开始了。洛宾在度假第二天便接到工作任务，需要尽快赶往大溪地拍摄明星广告。洛宾央求奎因用货机载她一程，不料飞行路上货机不幸遇上暴风雨，奎因只好紧急迫降在一个荒凉的小岛上。在这里，奎因和洛宾将面临着严峻的生存问题：如何寻找食物，如何寻找活路，以及如何逃过岛上凶险的海盗。奎因虽是个粗人，此时却强有力地保护着洛宾，二人情不自禁地互生情愫，然而身为他人未婚妻的洛宾，心中却有万分挣扎。这段感情，是否只能存活在这个现实世界之外的小岛…

Shipwreck survivors are found on Beiru Island (Infanto tô), which was previously used for atomic tests. The interior is amazingly free of radiation effects, and they believe that they were protected by a special juice that was given to them by the island's residents. A joint expedition of Rolisican and Japanese scientists explores Beiru and discovers many curious things, including two women only one foot (30 centimeters) high. Unscrupulous expedition leader Clark Nelson abducts the women and puts them in a vaudeville show. But their sweet singing contains a telepathic cry for help to Mothra, a gigantic moth that is worshiped as a deity by the island people. The giant monster heeds the call of the women and heads to Tokyo, wreaking destruction in its path.

一位失踪的太空驾驶员在被发现时，整个人宿醉未消、意识不清，他的同事建议他再来杯睡前酒当解药。临近关门的时间，他们勉强被放进了殖民地供给站，然而醉酒驾驶员每况愈下，只能把烂摊子留给了一个年轻供给工人独自处理。

随着科技的不断发展，人类赖以生存的地球却受到越来越严重的污染和威胁。某天，一架巨大的飞碟出现在地球上空，引起各国民众一片恐慌，谁也不知道这个不速之客将对他们的命运带来怎样的影响。飞碟最终降落在美国华盛顿公园的中央，当地警察和军队倾巢出动。飞碟被全副武装的军人和好奇的民众团团围住，经过两个小时的对峙，悬梯从飞碟中缓缓探出。随着舱门的打开，一个身形与人类别无二致的外星人克拉图（Michael Rennie 饰）和全身金属的机器人出现在众人面前。这两个外星人似乎为了地球的命运而来，他们表示出友好，却未得到应有的回报……本片荣获1952年金球奖最佳促进国际了解电影奖。