The Monster That Challenged the World (1957) Subtitles

Tim Holt, Max Showalter, Mimi Gibson, Jody McCrea

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. ?Jeremy Lunt