In the future a weather station in the Himalayas is attacked...by something. Rod Jackson, commander of the space station Gamma 1 is sent to investigate. Also on board is his girlfriend and their Sherpa Guide, who is clearly a black guy, not an Asian. They are captured by the Yetis, who are tall bearded men covered in white hair wearing green vests. It's revealed they are invading aliens--and they want to turn Earth into an ice ball and invade it. Weird Italian space movie, all the weirder because the tone is so serious. Recommended if you're a fan of THE GREEN SLIME.