A scientific expedition to Antarctica discovers a "lost valley" hidden in mists deep below the icy wastes. The astounded party discovers prehistoric creatures alive, thriving...and hungry. Can the explorers escape this savage land before they wind up on the menu? Thrilling dinosaur drive-in fare stars Jock Mahoney, Shawn Smith, William Reynolds, Henry Brandon. 79 min. Widescreen; Soundtrack: English Dolby Digital mono.