The Primevals

Deep in the Himalayas, a group of Sherpas subdue and kill a towering humanoid creature. Its remains -- including a brain that appears to have undergone some kind of surgery -- wind up under the supervision of Dr. Claire Collier (Juliet Mills), who believes it to be one of the legendary Yeti. Joined by her former student Matt Connor (Richard Joseph Paul), a longtime believer in the creatures' existence, big-game hunter Rondo Montana (Leon Russom), and others, Dr. Collier leads an expedition into the mountains to track down more of the abominable snowmen. Their trek results in an encounter with a tribe of primitive hominids -- which in turn leads to the far more frightening discovery of beings they never could have expected or imagined.