Canadian Mountie Sgt. Preston patrols the wilds of the Yukon with his horse Rex and his faithful dog Yukon King, battling both the elements and criminals.
A young married couple arrives in the Yukon from the U.S. to take over the ghost town they've inherited.
Two greedy renegades bargain with a band of Yukon newcomers who struck it rich, but are out of food. The renegades offer them one pound of food for one pound of gold.
The partner of an Englishman is killed after the two make a rich find. With a reputation as a marksman, the Englishman is the prime suspect.