In the Alaskan town of Skagway, Sergeant Preston is assisted by U. S. Marines in his dangerous undercover pursuit of a murderous fugitive and the head of a gold smuggling ring. br br Directed by George W. Trendle, Fran Strikerbr Starring Dick Simmons, Yukon King, Vic Perrinbr br Castbr Dick Simmons as Sgt.