A struggling painter begins taking inspiration from the dreams of his friend and roommate, a comic book fan who narrates an adventure story while he sleeps, but unbeknownst to the latter, the artist of his favorite comic book lives in the same building as they do with the model for her drawings.

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.