A 400 year old disembodied head hypnotizes a female psychic, who recovered it using a dowsing rod, to search for the rest of its body.

Volcanic activity frees giant scorpions from the earth who wreak havoc in the rural countryside and eventually threaten Mexico City.

An earthquake in the Salton Sea unleashes a horde of prehistoric mollusk monsters. Discovering the creatures, a Naval officer and several scientists attempt to stop the monsters, but they escape into the canal system of the California’s Imperial Valley and terrorize the populace.

When a very old African woman offers an ambitious endocrinologist the secret of eternal youth, he decides to take his estranged and no-longer-young-and-beautiful wife along with him on the safari. But then she finds out the true reason for their sudden reconciliation is so that she can serve as his guinea pig. Hell hath no fury like a woman scorned, especially one with a stolen pineal gland tapper. But once you try Nipe, there's no going back.

A Victorian Englishman travels to the far future and finds that humanity has divided into two hostile species.

Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds mankind divided into two warring races.

In order to save an assassinated scientist, a submarine and its crew are shrunk to microscopic size and injected into his bloodstream.