Mike Wein, an Alaskan bush pilot operating the the Bering Sea area, makes friends with John W. Wetherby, posing as a wealthy United States businessman. But, in reality, he is a Russian spy on his way to Siberia carrying microfilms of the United States' defense installations.

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.

When the Alaska fishing season ends, a crooked cannery owner, who owes a huge delivery of salmon to a Seattle company, manipulates local Natives, who have unlimited fishing rights, into illegally selling their catch to him.

A former Navy SEAL and his retired combat dog attempt to return to civilization after a catastrophic accident deep in the Alaskan wilderness.