King of the Candian riding police is up against Japs and Nazis who are about to invade Canada. They just want to clear the way with a new futuristic plane called "The Falcon" first, but that's not gonna happen if Kig has his way.
Stock-footage from Republic Pictures' earlier Zorro serials was served up once again in this 12 chapter cliffhanger, this time without the financially strapped studio having to credit Zorro creator Johnston McCulley or pay any royalties. Zorro simply became "Don Daredevil" (Ken Curtis), a foppish Easterner by day turned masked avenger by night. Like his not too distant relative, Don wore his disguise in order to battle nasty Roy Barcroft who, under a forged Spanish land grant, attempts to take over the surrounding ranch land.
Buffalo Bill Cody battles a gang of outlaws secretly headed by an unscrupulous lawyer.
Prospector Henry Tolliver disappears and his son "Wild Bill" Tolliver comes looking for him.
The self-styled son of Indian chief Geronimo gets himself involved with a gang of nasty whites in this typical low-budget 15 chapter serial, which benefitted from a great deal of footage from the the stock piles at Columbia Pictures. Jim Scott and wagon train boss Tulsa are on to the nefarious schemes of Rance Rankin and Ace Devlin, getting words of warning through to Portico, the Son of Geronimo. With Portico's help, the white renegades are finally destroyed in the serial's concluding chapter, "Peace Treaty." Moore, the future star of the television series The Lone Ranger, was here billed "Clay Moore."
The mysterious Don Del Oro ("Lord of Gold"), an idol of the Yaqui Indians, plans to take over the gold and become Emperor. Francisco was put in charge of a legion to combat the Yaqui tribe and protect the land, but when attacked Zorro came to his rescue. Francisco's partner recognized Zorro as the hidalgo Don Diego Vega, then ask him to take over the fighting legion as his alter-ego Zorro.
Two investigators for a stagecoach company are assigned to find out why the company's stages keep being ambushed. They discover that the culprits are white men disguised as Indians, and they set out to discover who is behind the plot.
Tom King Jr. seeks to discover who murdered his father, a Texas Ranger; the trail leads to a network of Axis spies.
Government agents work to interfere with schemes to trick the Comanches into war with the Texans.
A new town doctor arrives at the same time as local Indians needprotection from troublemaking looters.
In 1865, Captain Mark Smith of the Confederate Army leads a band of deserters to conquer Texas and rule it as a dictator. In one of his first actions, he captures and assumes the identity of Texas' new Finance Commissioner, Colonel Marcus Jeffries, after having the real man murdered. When a contingent of Texas Rangers enters the territory, Snead, one of Smith's men, leads them into an ambush by Smith's "troopers". The Rangers are apparently wiped out, although one injured survivor is left. The survivor, nursed back to health by Tonto, swears to avenge the massacre and defeat "Colonel Jeffries" and his men.
When Pegleg and his Black Raiders threaten the westward expansion of the United States, the government sends Kit Carson and David Brent to straighten things out.
Calvin Drake employs a group of low-lifes to drive away land owners along the path of a new railroad; Red Ryder opposes this strategy.
Jesse James wants to start a new life in a new location, but quickly finds himself wrapped-up in protecting townsfolk from the machinations of evil oilmen.
Sergeant MacLane of the Mounties investigates the disruptive activities of a bunch of troublemakers.
Kit Cardigan seeks the killer of his father...among other plot threads leading up to the famous historical incident.
A gang of land-grabbers tries to prevent safe passage of the Foster Stage Company through frontier territory.
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.
Homesteaders are moving into the valley settled many years ago by rancher Craig Dolan. He wants to keep them out by legal means but his nephew Bart brings in outlaws to drive them out. The Lone Ranger is on hand to help the homesteaders battle Bart's men as he overcomes traps, ambushes, burning buildings and other obstacles in his attempt to bring peace to the valley.
Jeff Scott is sent to investigate problems with wagon trains attempting to make the journey to Oregon. Sam Morgan has sent his henchmen, under lead-henchman Bull Bragg, to stop the wagon trains in order to maintain control of the fur trade in the area.