Aliens from a dying world plot to conquer earth by praying on man's superstitions. Bringing two dead scientists (Michael Rennie and Karin Dor) back to life, they use their knowledge to re-animate various earth monsters, including the werewolf Waldemar Daninsky, Frankenstein's monster (both played by Jacinto Molina), the mummy Tao-Tet, ...

An Egyptian princess rises from the dead and goes to California for the amulets she needs.

An Egyptian noble, sentenced to death for a forbidden affair, returns from the grave 3,000 years later and becomes obsessed with a woman whom he thinks is the reincarnation of his dead lover.

Count Dracula adjourns to Earth, accompanied by Frankenstein's Monster, the Wolfman, the Mummy, and the Gillman. The uglies are in search of a powerful amulet that will grant them power to rule the world. Our heroes - the Monster Squad are the only ones daring to stand in their way.

An ancient Egyptian priest named Imhotep is revived when an archaeological expedition finds his mummy and one of the archaeologists accidentally reads an ancient life-giving spell. Imhotep escapes from the field site and searches for the reincarnation of the soul of his lover.