The third installment in low-budget producer Lindsley Parson's "Chinook" series, Snow Dog was ostensibly based on pulp writer James Oliver Curwood's 1915 short-story "The Tentacles of the North," which was also the working title. Kirby Grant again played Rod McDonald of the Canadian Royal Mounted, and once again the vehicle was stolen by his canine sidekick, the white malamute Chinook. This time, Rod and Chinook are tracking a mysterious white wolf, thought to have killed several of the local traders.
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