An Eskimo Army Sergeant is sent to his Arctic tribal village to gather information about a mysterious unmarked black airplane which shadows military planes in northern Alaska and equally-mysterious flashings lighting up the sky from Siberia across the Bering Strait. He soon discovers Soviet espionage at work. Along the way he must also deal with an ice-floe evacuation, an air-ice rescue, a fight with a polar bear and marriage to his fiancee.

Mala
as Sgt. Koovuk

Gloria Saunders
as Alak

Guy Madison
as Lt. Phil Johnson

Lee Frederick
as Major Bennett

Gordon Barnes
as Capt. Mack McLoflin

John Bryant
as Enemy Pilot Alex

Richard Vath
as Maj. Elia

Gene Roth
as Russian Colonel

John Bleifer
as Commissar Volgan

Philip Ahn
as Taglu, a spy