Watch The Monster That Challenged the World full movie online free in HD with English subtitles – no download needed.
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.
Audrey Dalton , Barbara Darrow , Byron Kane , Charles Herbert , Charles Tannen , David McMahon , Dennis McCarthy , Gil Frye , Gordon Jones , Hal Taggart , Hans Conried , Harlan Warde , Jody McCrea , John Carlyle , John Close , Joseph Hamilton , Mack Williams , Marjorie Stapp , Max Showalter , Michael Dugan , Milton Parsons , Mimi Gibson , Ralph Littlefield , Ralph Moody , Sara