Cast & Crew
Canadian fur trapper Louis La Rue and his new wife Jean St. Clair arrive at her uncle Jaques' home in Quebec to announce their marriage. After they leave their dog Grey Wolf in the convertible car, he is beckoned across the street by his dog friend, Oscar, who introduces him to his other friends. Grey Wolf then recounts what has happened to him since he last saw Oscar: After being whipped by a cruel master, Grey Wolf runs away into the woods, where Louis and Jean, then secretly engaged, are discussing Jaques' insistence that Jean marry Louis's competitor Gaston Pacot. The couple adopts Grey Wolf, who departs with Louis as he goes to retrieve his cache of silver fox pelts. After reaching Louis' cabin, however, Grey Wolf runs off to warn a howling wolf that his master may shoot her if she continues. While he is gone, Louis attempts to load his shotgun but is blinded when the powder explodes in his eyes. To his dismay, Gaston arrives and spends the night in the cabin. Gaston later shoots and kills the wolf, and while Grey Wolf is hunting a rabbit, Gaston steals Louis' valuable pelts and leaves. Grey Wolf attempts to avenge his wolf friend's death but is narrowly escapes being shot by Gaston as well. Later, Louis asks Grey Wolf to guide him back to town. Gaston, meanwhile, sells Louis's pelts as his own to trading post owner Charles Hendrickson. Gaston's newfound wealth convinces Jaques, who is heavily in debt to Charles, that Jean must marry Gaston soon, despite the warnings of Louis' friend Abe Hawkins that Gaston is untrustworthy. As Louis nears town his sight is restored, but he decides to maintain a pretense of blindness to fool Gaston. Louis and Jean reunite and, after she reaffirms her love for him, Louis reveals his plan to expose Gaston and asks her to play along with her uncle for a few more days. A jealous Gaston sees them together and fires at Louis from afar, but Louis is unharmed. Louis then visits Charles and, after examining a silver fox pelt that bears his mark, explains his suspicions to the trading post owner. Later at Jean's cabin, when Louis handles a pelt that Gaston presents as his wedding gift to Jean, Louis notices it bears his own mark and confronts Gaston. Gaston and Louis fight, and Grey Wolf, who is tied up outside, breaks his bonds just as Gaston knocks Louis unconscious with a jug. Grey Wolf attacks Gaston and tackles him to the floor, after which Louis recovers and Charles, Abe and Jaques arrive. Grey Wolf now concludes his story by relating that he and Louis succeeded in scaring Gaston. A happily married Louis and Jean prepare to leave as Grey Wolf bids farewell to his friends and joins them in their car. When a dogcatcher appears and threatens to capture Oscar and his pals, all but the smallest dog leap into Louis and Jean's car. Grey Wolf jumps out rescues the small dog's by snatching it away from the dogcatcher and carrying it into the automobile.
The opening credits read "Ambassador Pictures Presents 'Leader' in The Return of Grey Wolf, and include the following quotation attributed to Herbert Landsdowne: "All language is universal-the dog is second in intelligence to man." A title card lists "Leader's" character name as "Gray Wolf," although the spelling in opening title credits reads "Grey."