Produced by Ken Murray strictly as a vehicle for Laurie Anders, his curvy protege from his television show and billed above the title and first billed in the cast as Laurie ("I-like-the-wide-open-spaces") Anders, which was her catch-line phrase and how she was introduced and known. This is neither a comedy, satire or parody---missing badly on all attempts at such---and isn't much of a western either, even by bottom-of-the-barrel B-standards. The plot by veteran B-western villain player Bob Duncan, who did manage to write himself the best role in the movie, relative to there being no good roles in this movie, has town banker Anderson (Robert Bray as Bob Bray), the secret head of an outlaw gang, trying to organize a Cattleman's Association and not getting any takers. He sends for Trigger Gans (Bob Duncan) to act as a persuader. But a mysterious, masked rider known as El Coyote begins to resist. El Coyote is of course Laurie Dawson (Laurie Anders as Laurie "I-like-the-wide-open-spaces" Anders), daughter of retired Marshal and rancher Ben Dawson (Hoot Gibson), and her El Coyote role ensured that whoever stunt-doubled her would wear pads where no stunt man ever wore them, with the possible later exception of Dean Smith doubling Maureen O'Hara in "McLintock." The heroines that Dave Sharpe doubled in Republic serials weren't built like Laurie Anders. Producer Ken Murray, as a riverboat gambler named Sliding Bill Murray, rolls into town on the same stage as Trigger Gans, and then promptly engages Preston Foster, Johnny Mack Brown,Jimmy Wakely and Buddy Baer(in cameo roles) in a blackout-skit poker game written by himself, which had to have been even more painful for the participants than the viewers. Ralph Staub used to get better stuff than this in his "Screen Snapshots" just roaming around Columbia's backlot and interviewing Smiley Burnette and Ringeye.

In 1870, a wagon train is attacked by a band of Indians under the control of a white man with a scar on his face. During the attack, the wife of Marshal Ben Dawson is killed, leaving him to rear his infant daughter Laurie. As Laurie grows to adulthood, she becomes accomplished in riding and shooting and helps her father, who works undercover as the owner of a medicine show. One day, when her friend, rancher Russ Mason, comes by the wagon to ask why they have not been back to their ranch in Bitterwood in some time, Laurie relates a recent adventure: While in a town with the show, Ben is called aside by the local sheriff, Bill Flynn, an old friend of Ben who promises to keep his secret. As the men talk, a little boy sadly relates the story of how his grandfather was shot by bandits. The boy, who feels responsible for his grandfather's death, tells Bill and Ben that the head bandit was called "Trigger" and had a large scar on his face. Ben immediately concludes that the bandit must be Trigger Gans, the man who caused his wife's death. Later, as Laurie performs at the wagon show, Gans walks by. The little boy sees him and starts to aim his rifle, but Laurie grabs the gun and follows Gans into the saloon. Pretending that she is looking for a singing and dancing job, Laurie overhears Gans and his men planning a bank robbery for that night. When Ben chastises Laurie for going into the saloon, she tells him what she has overheard and offers to help, but her father refuses, saying that she is still just a "little girl" no matter how well she shoots. Disappointed, Laurie tells the little boy that she wishes she were a "big man." Late that night, as Gans and his gang ride into town, Bill and Ben are waiting for them inside the bank. A gunfight ensues, during which Ben is slightly wounded, but saved from being killed by Laurie, who has been watching and shoots the gun out of the bandit's hand. Although several gang members are captured, Gans gets away. When she finishes her story, Laurie tells Russ how hard her father took it when Gans escaped. When Ben arrives, Russ reveals that a gang of rustlers has been terrorizing Bitterwood ranchers, and they need his help. A short time later, Laurie and Ben arrive at their ranch, which they own with Ben's brother, Uncle Jed. Later, at a gathering in town, Russ listens to town banker Anderson tell a crowd that the bank will give loans to members of the Cattlemen's Association to protect them from damage done by the rustlers. Jed and Russ warn the others not to trust Anderson, as the bank has been taking over ranches to which they have loaned money when the ranchers are killed by the rustlers. Russ and Anderson are on the verge of a fight when Laurie intervenes and suggests that everyone meet again at a later time. Some days later, Ben and Russ are at the ranch discussing Ben's early career, when Jed rides home, mortally wounded. Just before he dies, he relates that he was shot in an ambush. The grieving Laurie then determines that something must be done immediately. Laurie soon dons a costume and mask and becomes known as "El Coyote" as she rides the countryside thwarting the bandits whenever they attack. No one knows the true identity of "El Coyote," who never captures, but always scares off the bandits. One day, when "El Coyote" foils the attempt of the rustlers to rob a stagecoach, Laurie barely makes it home before Russ arrives. He tells her that he has always loved her, and proposes. Although Laurie feels the same way, she refuses his proposal, saying that she must care for her father. That same afternoon, Anderson, who secretly heads the bandits, hears from one of his henchman that rancher Jones has withdrawn $25,000 from the bank, saying that he has asked Ben to take the money to another town for safekeeping. Now realizing that other large withdrawals are also going to Ben, Anderson decides that he should have a "talk" with Ben at his remote Bear Valley cabin. A few moments later, when the stage that "El Coyote" saved arrives in town, one of the passengers, comedian Smiling Billy Murray, relates what has happened and introduces the other passengers. One of them, a parson, is recognized by Ben as Gans. The town wants to lynch him, but Ben insists that they respect the law and place him under arrest. Later that day, as Ben leaves town, he is ambushed by Anderson's men. As they ride off, "El Coyote" appears and disarms his captors, but one of them slightly wounds Ben and takes him to the cabin, as "El Coyote" chases the others. Moments later, while Anderson threatens Ben with blindness unless he gives up the ranchers' money, "El Coyote" appears. After a scuffle, Ben is able to hold the henchmen at bay, while "El Coyote" chases after the escaping Anderson. When "El Coyote" corners Anderson in a box canyon, Anderson recognizes Laurie's eyes and voice and pleads that Jed's death was an accident, then lunges at her. In a scuffle, Laurie kills him in self-defense. Laurie immediately rushes back home to change out of her costume, which she hides behind a screen. When Russ arrives, he sees the costume and realizes the truth but says nothing. Moments later, when Ben comes home, he tells Russ and Laurie that "El Coyote" must be very young, but is still "a real man." When Laurie says that she is sure "El Coyote" is not half the man her father is, Russ smiles and says that he has a hunch she is right.