The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns that Compound X also contains magnetic properties that could aid them in their warfare against the British, they send agents to infiltrate Canada and steal a large quantity of the substance. It's up to Sgt. King (Allan Lane) and his Mounties to track down the agents and put an end to their scheme.
Movie tag line: "THE KING OF YOUR FAVORITE CARTOON STRIPS BECOMES THE ADVENTURE KING OF THE SCREEN!"
Production companies:
Character: Dave King
Character: John Kettler
Character: Tom Merritt, Jr.
Character: Linda Merritt
Character: Ross King
Character: Wade Garson
Character: Matt Crandall
Character: Vinegar Smith
Character: Tom Merritt Sr.
Character: Shelton
Character: Wall
Character: Zarnoff
Character: Johnson
Character: Tarner
Character: LeCouteau
Character: Higgins, Cabin Henchman
Character: Joe - Smelter Truck Driver
Character: Henchman Mike
Character: Fake Inspector Kent
Character: Kelly - Miner
Character: Sergeant - Wireless Operator
Character: Smelter Heavy #2
Character: Paralytic #3
Character: Klondike
Character: Mills
Character: Major Harold Bolton
Character: Pete
Character: Const. MacCloud
Character: Paralytic #2
Character: Blake - Gang Pilot
Character: Knife Heavy
Character: Train Brakeman
Character: Constable Doyle
Character: Fake Inspector Dinwoodie
Character: Const. Carter
Character: Sanitarium Heavy
Character: Corporal Bob Hastings
Character: Paralytic #1
Character: Henchman Red
Character: Smelter Heavy #1
Character: Henchman Al
Character: Henchman Bayliss
Character: Const. Hallett
Character: Gang Radioman
Character: Brant - Speedboat Driver-Thug
Character: Lieutenant
Character: Bill - Sanitarium Heavy
Character: Paralytic #4