While on a ship to Skagway, Alaska, Duke and Chester find a map to a secret gold mine, which had been 'stolen' by thugs. In Alaska to recover her father's map, Sal Van Hoyden falls in with Ace Larson, who secretly wants to steal the gold mine for himself. Duke, Chester, the thugs, Ace and his henchman chase each other all over the countryside—for the map.
Bing Crosby
as Duke Johnson
Bob Hope
as Chester Hooton
Dorothy Lamour
as Sal Van Hoyden
Hillary Brooke
as Kate
Douglass Dumbrille
as Ace Larson
Jack La Rue
as LeBec
Robert Barrat
as Sperry
Nestor Paiva
as McGurk
Robert Benchley
as Narrator
George Anderson
as Townsman (uncredited)
Stanley Andrews
as Joe - Official at Ship (uncredited)
Bobby Barber
as Bartender (uncredited)