贪欲和邪念横行世间，愚蠢的人类不断开发大规模杀伤性武器，原子弹、氢弹，甚至足以毁灭地球和宇宙的太阳弹也在开发之中。某高度发达的外太空文明为了阻止地球人的自毁行为，想尽办法进行劝阻。但地球人拒绝外星人的规劝和存在，转而兵戎相向。万般无奈之下，外星长官依洛（Dudley Manlove 饰）启动第九号计划，将已死去的人类复活，让僵尸四处为虐已警示人类。 　　一时间飞碟和凶案接连出现，军方、警方以及民间纷纷联合起来，以摧毁外星人的入侵计划……In California, an old man (Bela Lugosi) grieves the loss of his wife (Vampira) and on the next day he also dies. However, the space soldier Eros and her mate Tanna use an electric device to resurrect them both and the strong Inspector Clay (Tor Johnson) that was murdered by the couple. Their intention is not to conquer Earth but to stop mankind from developing the powerful bomb "Solobonite" that would threaten the universe. When the population of Hollywood and Washington DC sees flying saucers on the sky, a colonel, a police lieutenant, a commercial pilot, his wife and a policeman try to stop the aliens.