While riding through the West in 1889, the Cisco Kid and his sidekick Gordito discover a grave with a headstone reading, "Here lies the Cisco Kid." Surprised to learn that he is dead, Cisco questions Carmelita, who is weeping by the grave. Carmelita, who works as a servant for rancher Kate Brewster, explains that the buried man was her fiancé Manuel, who was accused of being the notorious bandit and then killed by Kate's foreman, Joe Turner. Just then, Cisco and Gordito see three men try to rob the passengers of a covered wagon. After scattering the would-be thieves, Cisco finds out that the passengers are Englishman George Wetherby and his daughter Susan. The Wetherbys are on their way to the Brewster ranch, of which they are purchasing a parcel of from Kate. Cisco and Gordito accompany the Wetherbys to the ranch, where they hope to discover Turner's motive for framing and murdering Manuel. At the ranch, they meet Kate and her nephew Billy, who has just been made a sheriff's deputy. At dinner that night, Turner relates how the alleged Cisco Kid pillaged the land and livestock intended for the Wetherbys before Turner killed him. George is undeterred by the threat of bandits, and confides that he is investing all of his money in the land. The three men who tried to rob him then arrive at the ranch, and despite George's protests, Kate insists that they be allowed to stay, as her late husband always declared that the ranch was a sanctuary for any visitor. After dinner, Kate castigates Turner for allowing the three men, who are his henchmen, to come to the ranch. Kate and Turner are in league to rob George and drive him away, because selling the land, which George was mistakenly allotted by the bank, will divide Kate's ranch in two. While Kate and Turner scheme to rob the Wells Fargo stagecoach, which will be carrying George's money, Cisco realizes that they are behind the destruction of George's land and merely blamed it on the fake Cisco Kid as an alibi. Later, Kate reveals that she knows Cisco's real identity, even though he is using the name Señor Chiquelo, but he warns her that he will not desert the Wetherbys. The next day, Sheriff McBride tries to arrest Cisco, but he claims the sanctuary of Kate's ranch. Billy and George, believing that Cisco is a truly dangerous desperado, turn against him, but Susan maintains that he is trustworthy. Later that night, Kate and Turner plan on setting Cisco up by luring him away from the ranch while Turner impersonates him and robs the stagecoach. The ruse works, and Cisco and Gordito return to the ranch after McBride is told of the robbery. Gordito is apprehended while Cisco escapes, but Cisco is captured the next day when he tries to free his friend. Cisco bests the deceitful Turner in a fair draw when he escapes later, then he and Gordito prevent Kate and her henchmen from stealing George's money, which was not taken in the stagecoach robbery. Kate is killed when her wagon overturns during the chase and crushes her. Cisco explains her schemes to George and Susan, but warns them not to tell the naïve Billy. He then escapes with Gordito as McBride's posse comes after them.