In early 19th-century Cornwall, young Mary Yellan travels to live with her aunt and uncle at the remote Jamaica Inn, where she discovers the inn is a front for a violent gang of wreckers who lure ships to their doom along the coast. As she becomes entangled in their crimes, Mary must fight to survive and uncover the truth behind the terror that haunts the moors.
A tough street kid takes the rap for a burglary committed by the son of his foster family and is sent to a boys reformatory, where the inmates are under the thumb of corrupt guards and a brutal prison doctor.
Jimmy, an idealistic and hard-working young man, has just arrived in New York City with dreams of making his fortune. Along the way he faces numerous obstacles, opportunities and temptations, but through it all, he considers the actions of his hero, Abraham Lincoln, for guidance. Will Jimmy see his dreams come true, or will he be another of the countless hopefuls chewed up and spit out by New York's mean streets?
Detective James Lee Wong must find the "Eye of the Daughter of the Moon," a priceless but cursed sapphire stolen in China and smuggled to America. His search takes him into the heart of Chinatown and to the dreaded "House of Hate" to find the deadly gem before it can kill again.
While participating in a contest at a local newspaper in which school children are asked to submit a news story, local attorney Carson Drew's daughter Nancy intercepts a real story assignment. She "covers" the inquest of the death of a woman who was poisoned. Nancy doesn't think the young woman accused of the crime is guilty and corrals her neighbor Ted into searching for a vital piece of evidence and stumbles onto the identity of the real killer.
When shifty cattlemen Belknap (Walter Miller) and H.R. Shelby (Gordon Hart) are caught shipping infected animals to Mexico, they frame inspector Gene Autry. Now Autry and his sidekick, Frog Millhouse (Smiley Burnette), must catch the bad guys in the act and set things straight. June Storey co-stars as rancher Martha Wheeler. Autry sings "I'm Gonna Round Up My Blues," "Moonlight on the Ranch House" and "Big Bull Frog."
A Japanese man claiming to be Mr. Moto, of the International Police, is abducted and murdered soon after disembarking from a ship at Port Said in Egypt. The real Mr. Moto is already in Port Said, investigating a conspiracy against the British and French governments.
An undercover police woman poses as a nighclub entertainer to catch the main man behind the racketeers going on around Harlem. Meanwhile two men are falling for her.
“Shorty” Matthews having recently been released from prison visits his girlfriend in London only to discover her murdered. Fearing he will be wrongly accused of being the culprit he disappears amongst the long-distance lorry driving community. Meanwhile, the real killer, unassuming ex-schoolteacher Walter Hoover, continues to prey on London women. As Shorty had feared he has become the main suspect. He returns to London with old flame Molly to prove his innocence.
A Capone-like racketeer named Anderson, who after being chased out of one town by the authorities immediately sets up shop in another. Unable to get any tangible evidence against Anderson, DA Wayne orders his assistant Carter to dig up some dirt on the gangster boss. To do this, Carter pretends to turned crooked, joining Anderson's gang in order to accumulate evidence. Alas, Carter's girl friend Patricia knows nothing of her boyfriend's subterfuge, and she suspects the worst.
A cynical woman with a disfigured face—a hardened criminal—gets an opportunity to change her ways when she meets a sympathetic plastic surgeon. She leaves her old life behind, but soon her old friends catch up with her.
A chemical manufacturer is killed just after asking detective James Wong to help him. So detective Wong decides to investigate this as well as two subsequent murders.
The son of a man sentenced to death for a murder he didn't commit vows to become a criminal himself. He starts his own street gang, and their crime spree is financed by a mysterious young man--who turns out to be the son of the District Attorney who sent the boy's father to the electric chair.