Lieutenant Johnson, a U. S. Air Force pilot, on the tip of Alaska, a few miles from the Bering Straits from Siberia, helps foil a Soviet plot to test a new secret weapon by loyal Alaskan Eskimos. He is aided by Sergeant Koovuk, an Alsaka native Eskimo also in the U.S. military service. Along the way there is an ice-floe evacuation, an air-ice rescue and a fight with a polar bear.