Begin with setting the record straight for those uninformed sources that insist on tagging this film as a Producers Releasing Corporation entry. It was produced by Sigmund Neufeld's Producers Pictures Corporation and distributed by Producers Distributing Corporation before both became known as PRC (producing and distributing) a few months later in 1940. The PRC name did not yet exist when this film was made, nor does it appear on any of the prints or advertising connected with this film. Neufeld produced this one as the first of a proposed series of films featuring his B-western version of M-G-M's Hardy Family. Heading the cast was 13-year-old World's Champion Junior Cowboy named Bobby Clack, who was well known by that name so Neufeld, for reasons unknown since his use of Clack was to cash in on Clack's rodeo reputation (who had already appeared in two films as Bobby Clack), promptly changed his name to Bobby Clark. Go figure. The film has Bobby Sawyer, 13-year-old World's Champion ...

Before he was murdered Grandpa Martin found a gold mine. He failed to record it and now everyone is looking for Martin's old horse that can lead them to it. When under-cover Texas Ranger Autry arrives to investigate, he is accused of the murder and finds the Sheriff after him.

Tom Weston arriving in town just as the Doctor announces his father's death a suicide, sees the gun is in the wrong hand. When the Bank Examiner announces the bank has no money and Tom's identity becomes known, the townsmen attempt to hang him. Escaping he finds the phony examiner and gets a a confession. Then he plans a trap for the murderer.

An agent tracking down a man who disappeared in the mysterious "Ghost Mountain" area discovers discovers the hideout of a gang of murderous outlaws.

Krag Sabine has aroused the wrath of all the ranchers by stealing their land with the aid of his henchmen, led by Ace Barco; when Lafe Martin objects, the outlaws shoot him down. Lucky Randall promises Ann Martin he will avenge her wounded father. He sets up headquarters on the Martin ranch and sends for Bob Merritt and his men, the Texas Playboys (Jesse Ashlock, Leon McAuliffe, Cotton Thompson, Junior Barnard and Luke Wills). Krag organizes his remaining men for an attack on the ranch. Lucky's men get the upper hand but Krag escapes with Ann as his hostage.

When a group of kids discover dangerous trails to a conspiracy just a few days before the Chernobyl disaster, they begin a race against time in order to prevent the largest nuclear disaster from happening.

Cowhand Drake discovers gold on the ranch of his boss, Joe Stuart and makes a deal with crooked lawyer Mel Porter to induce Stuart to sell. The latter refuses, and also orders Bill Cameron not to see his daughter Laurie again. Foreman Johnny Mack, after intervening, quits after he sees Stuart hit Laurie while quarreling over her proposed marriage to Cameron. Peddler Alibi Terhune witnesses the killing of Stuart by Clem Kettering, hired by Porter, and is taken prisoner. Cameron is blamed for Stuart's killing, escapes jail, but is persuaded by Johnny to go back and stand trial. Johnny rescues Alibi and the two work together on clearing Cameron's name, and bringing the real culprits to justice.

Banker Eason uses Yates to stage a fake holdup and in the ensuing chase and gunfight Eason kills Lawson. Sheriff Bob Higgins was in the chase and in the confusion thinks he killed him. Quitting as Sheriff he later finds Yates gold piece at the scene. But just as he is about to get a confession from Yates, Eason shoots Yates.

In a remake of Dawn Trail, Bob Mason is wounded chasing the killers of his father. During his recovery, his nurse is Alice whom his friend Ben plans to marry. He eventually learns the killer was Alice's brother Rudd. But Rudd convinces Ben that Bob is taking Alice away from him. So Ben removes the bullets from Bob's gun just before Bob goes off to face Rudd.

For the third year, the expedition has been searching for the causative agent of an infectious disease rampant in the Ussuri taiga, where a major construction project is about to begin. Meanwhile, the enemy seeks to destroy the fruits of years of labor of Soviet microbiologists. Young scientist Vasily Zheludev exposes a master saboteur and forces him to flee into the taiga.