Dr. Harry Olson, an American paleoanthropologist, and his wife, Dixie, have returned from the mountains of Mongolia with two live Yeti, a male and a female. A team of scientists in Harry's anthropology department at California Pacific University are now trying to uncover a link between human and Yeti genetics. But when the Yeti escape, Harry's in a race against time to recapture the animals, knowing only too well how the terrible consequences will be if the creatures make it off the desolate high-desert facility and reach a human city...