Blake of Scotland Yard

A 15-episode serial starring Buster Crabbe.

A cowboy hears rumors that an old friend who once headed a criminal gang and had since gone straight is now back on the wrong side of the law. He goes to investigate.

When a gang tries to rob Haldain, Jim and Walla Walla break it up. Haldain is carrying stuffed animals and Jim's suspicion that they are stuffed with gold is soon confirmed. The gang's boss is banker Cutting and he is after Haldain's gold. He also receives Jim's mail at his bank and changes one of Jim's letters to make it look like Jim is after the gold. His sends Haldain's daughter after her father thereby leading the gang to the secret gold field.

A mad killer is on the loose in a hotel on a dark, gloomy night.

Lloyd Wilson, trusted employee of an investment firm, is suspected of theft when $20,000 in security bonds is stolen from his office. Tarzan, the Famous Police Dog, has an intuitive dislike of an apparently respectable citizen, and this leads Wilson and the police to the gang headquarters. Tarzan wins a public citation for his leading part in breaking the case against a desperate gang of criminals.

Jim Crosby, the product of a broken home, becomes a gangster and goes to prison. Meanwhile, Ann Payton, an heiress, converts a saloon into a mission. She is engaged to her father's secretary, Temple Vaughn, a gambler. Jim is released from prison and seeks shelter at the mission. Temple becomes indebted to gambler Phil Johnson and is forced to arrange a crooked poker game involving some of his wealthy friends. Jim overhears the plot and, realizing that Temple is Ann's fiancé, robs the poker game and puts a check Temple forged into Temple's own pocket.

Martin Granville Jr. (Bruce Bennett), a star track-and-field athlete, has intentions of going to Claxton College, but changes his mind when he meets Pat Meredith (Jeanne Martel), a co-ed at a rival college, changes his mind team and goes to college there, just as his father Martin GRanville Sr. (Sam Flint), an alum of the school, had wished. But his father has ordered him not to play football. "Dad" Granville, has offered a $100,000 endowment to his old school, not knowing his son has joined the football team, but is going to withdraw it if his son plays in the Big Game against Claxton.

Jockey Johnny Spencer loses his job with Mrs. Calhoun for throwing a race. An adventuress named Sybil, who made Johnny hold back Mrs. Calhoun's horse, Lady, leaves him, and he becomes a racetrack bum. Johnny returns to Mrs. Calhoun's stable when the new jockey proves unable to manage Lady. Johnny wins the next race, thereby regaining Mrs. Calhoun's confidence and winning the love of her attractive daughter, Lucy.

Overland mail riders Jack Mason and his pal, Porchy, learn that an Indian uprising is imminent because one of the tribe has been murdered by a gang of outlaws. The primary town of the mail route is also being used as a hideout and base of operations for a gang of counterfeiters led by Joe Polini. Jack and an undercover federal agent, Duke Evans, round up the counterfeiters and turn Polini over to the Indian Chief as the killer of the brave.

Based on the novel by Edison Marshall