The Cisco Kid (Gilbert Roland) hears of a land-swindling scheme devised by the police Commandante (Martin Garralaga) and the tax collector (Harry Woods) in a small western town. Cisco's efforts against the plot cause the thieves to fall out, and Cisco is able to return the land to the rightful owners.
Cisco and Pancho set out to clear their names in a series of stage robberies committed by two thugs who are impersonating them.
The Cisco Kid and Pancho set off to find the missing owner of a devoted little dog in this western adventure. From the vanished man's sister, the heroes learn that her brother disappeared soon after striking a major gold vein in his mine. In the end Cisco accosts the villain, saves the kidnapped miner and reunites him with his dog.
Satan's Cradle was the fourth of producer Phil Krasne's "Cisco Kid" programmers for United Artists. Anyone who remembers the Cisco TV series will know without being told that Duncan Renaldo and Leo Carrillo essayed the roles of wandering do-gooders Cisco and Pancho. Unlike previous entries, Satan's Cradle was directed by serial veteran Ford Beebe rather than the unimaginative Wallace Fox; the improvement is immediately noticeable. This time, Cisco takes on a frontier megalomaniac, shyster lawyer Steve Gentry (Douglas Fowley), who has taken over a mining town. Gentry's confederate is dancehall girl Lil (Ann Savage) who is as deadly as she is beautiful. When itinerant preacher Henry Lane (Byron Foulger) is beaten to a pulp by Gentry's goons (an astonishingly brutal sequence), Cisco and Pancho move in for the kill.
Cisco and Gordito arrive to find there is an outlaw operating in the area who is assumed to be the Cisco Kid. When a reward is offered for his capture and a large shipment of money goes out, Cisco is on hand. Seeing the gang rob the stage he goes after them only to be wounded. The gang leader leaves Cisco's handkerchief at the scene and now he is wanted for the murder he tried to break up.
An orphan whose father has been killed by bandits inherits a mine. Cisco saves the mine and the child and also finds the child's real mother.
The Cisco Kid is captured while keeping a rendezvous with cantina dancer Dolores but is released by his captor, the commander of a U.S. Army regiment, to help break up a kidnap ring. On his way to Las Tables with his pal, Gordito, he makes a stop at the Martinez Rancho, where they learn that his friend Carlos has been kidnapped, from his wife Marquerita. At the Crystal Palace Saloon, Cisco runs into an old girlfriend, Sally, who he once jilted for a tight-rope walker, but she doesn't betray him when the sheriff and an army officer enter searching for Cisco.
The Cisco Kid and his buddy Gordito arrive in town and learn that Cisco is supposedly dead. Not only that: Before his death, he is believed to have attempted to steal Susan Wetherby's land.