Big, hairy and very scary. When a Himalayan weather station is smashed to smithereens by creatures who leave super-sized footprints, suspicion falls on Abominable Snowmen. A heroic expedition braves snow-whipped precipices and discovers the dreaded humanoids. But wait -- these are extraterrestrial yetis who zipped in from outer space to conquer Earth by melting the polar ice caps with high-energy proton fields. Will mankind be global-warmed into surrender? Antonio Margheriti (aka Anthony Dawson) of The Wild, Wild Planet and War of the Planets fame directs this cult-classic freakfest that's a Big Foot tangled up in a shoestring f/x budget. - Alien snowmen plan Earth's doomsday.