Monsters─plural─would be more accurate, since we're talking about multiple gigantic, snail-like creatures that have been released from their resting place in the bed of the Salton Sea by seismic activity. Can the U.S. Navy contain the massive mutant mollusks before they devour the populace like escargot? Sci-fi shocker stars Tim Holt, Audrey Dalton, Hans Conried, Max Showalter. 83 min. Standard; Soundtrack: English Dolby Digital mono.