Northern Patrol was the last entry in Monogram/Allied Artists' off-and-on "Northwest Mountie" series. Taking time off from his Sky King shooting schedule, Kirby Grant stars as mounted policeman Rod Webb, while second billing is bestowed upon Webb's faithful dog Chinook. In this one, Webb tries to prove that the suicide of a young trapper was actually murder. The film offers a dash of novelty value in having the principal baddie turn out to be a beautiful woman (Marion Carr). Scripted by actor Warren Douglas, Northern Patrol was directed by Rex Bailey, the former assistant to the series' original helmsman, Frank McDonald.
Yukon Territory, Canada, November 1931. Albert Johnson, a trapper who lives alone in the mountains, buys a dog almost dead after a brutal dogfight, a good deed that will put him in trouble.
Ann Fenwick is a witness to a bank robbery in the U.S. and the bandits, led by Trigger and Leon capture her and when she disappears, a warrant is issued for her arrest as a material witness.
Northwest Mounted Police Corporal Jerry Hale is assigned to take over the district of a fellow-officer, and is puzzled as he had worked this district before and had been mysteriously transferred, disrupting his romance with Helen Brent, the niece of Peter Barkley, the Factor at the trading post.
In the great white north, a trapper searchers for the thief who has been stealing his furs while a local trader seeks to take advantage of the situation.
Constable Ward is assigned to track down a mysterious villain known only as The Leader. Trying to locate a secret gold mine, The Leader pits the Indians against the Mounties, whom he blames for creating trouble.
A group of French filmmakers travel to Andalucia for film a movie titled" Beauty of Cadiz". It stars are Carlos, a famous heartthrob, and an unknown gypsy named Maria-Luisa.
Mickey Rooney, plugging his latest Columbia film, stops by Ralph Staub's editing room and film vault, and the two of them watch clips from Rooney's films, dating back as far as the Mickey McGuire comedies.
In the spring of 1945, World War II is coming to a close. Roger Halyard, a dignified, strait-laced Englishmen, lives on a South Sea atoll with his three daughters, Gloria, Hester and Violet, along with the housekeeper, Thelma, who has raised the girls since childhood.
While traveling with his nephews, Donald is disgusted that they are only interested in comics. He stops at the "fountain of youth" and tricks the kids into thinking he is a baby again.