Major Geoffrey Barnett, U. S. Army Intelligence Service, is sent to Alaska, to apprehend a deserter, Tom Clark, who was presumed to be dead as a member of a small force wiped out on Attu in World War II. With the aid of Rose Flambeau, he finds evidence that the now-prosperous Clark killed his own comrades to prevent their reporting of a deposit of uranium, which he is now mining with the intention of selling to a foreign power.
The election to determine if Texas will become a state is near and men opposed are running contraband across the border. Sunset and Frog are Border Patrolmen and have an agent that tips them off by carrier pigeon. The Army arrives and the commander is Sunset's brother. When the agent is found out and murdered, his fake replacement then leads the soldiers astray.
失事的逃犯试图逃离一位失去理智的残忍船长。