Gun-runner Tom Friend (Forrest Tucker) embarks on an expedition in search of the fabled creature known as the Yeti, or Abominable Snowman. He is joined by botanist John Rollason (Peter Cushing), whose scientific curiosity is at odds with Rollason’s aim to capture and commercially exploit one of the creatures. Misfortune dogs the expedition as it travels deeper into the Himalayas, but trapper Ed Shelley (Robert Brown) succeeds in killing one of the giant animals. As the party’s numbers rapidly dwindle the ruthless Friend decides to use Shelley as bait in an effort to trap a live Yeti. The hunters soon become the hunted as a series of disturbing events lead Rollason to suspect that they are dealing with creatures of awesome intelligence.