The story centers around two small statuettes containing valuable emeralds, which are said to project a sinister influence on the possessor. The czar of Russia gives the statuettes to a grand duke, who, in turn, gives them to his secretary, John Hawksley. Hawksley sends them to America in a friend's possession and follows after.
A murder is committed aboard a cruise ship just before it sinks in a storm. The survivors, including the killer, land on a mysterious jungle island.
A wealthy recluse dies in her New York mansion, leaving an estate worth $50 million. Shortly after, various people turn up claiming to be the rightful heir to her fortune.
Rival newspaper reporters Pat Morgan and Ted Rand find themselves unraveling the mystery behind the death of a millionaire philanthropist who fell from his penthouse balcony. When it is discovered that the plunge was not an accident, the building's residents come under suspicion. Soon, the body count begins to mount as three more murders occur by strangulation.
A con man posing as a lawyer tries to sell copies of a phony law book. Things get serious when he has to defend a young man falsely accused of robbery.
Tex Mason and Peggy Turner each inherit one half of the Triple X Ranch. Thomas wants the ranch and he has Triple X hand Joe let his men rustle their cattle. Tex not only has to fight the rustlers, he must also contend with Easterner Peggy's idea of what a ranch should be.
A cowboy on the run from a posse finds the clothes and ID of a preacher on the trail. He assumes the man's identity, but when he arrives at the nearest town, he rides into the middle of a hanging--and the man who is being hanged knows his real identity.
Rancher Clint Hale wants to marry Mildred Field, but so does very bad guy gambler Dave Dumont.
The Murdock's bank is in trouble. So they ship money on the train and rob it to get back the money plus the insurance, Bonner and his two pals recover the money only to be thrown in jail.
An ambitious and ruthless young woman advances from the position of governess to the heights of British society.
Four "Picture Brides", from New Orleans, arrive in the Brazilian jungle on a riverboat, brought there to marry workers at Lottagrasso, a remote mining site of the Standard Diamond Mines. Also on the boat with the four "mail-order" brides (Americans Mame Smith, Flo Lane, and Gwen from England and Lena from Europe) is Mary Lee, a frightened and innocent girl, who has come to see the mine's brutal supervisor, Von Luden, about a job.
To bring in the bad guys, a rodeo champ poses as an inept cowhand.
Jimmy's uncle gives him 30 days probation on Kirk's ranch to control his temper or lose his inheritance. There he gets tangled up with a gang of robbers whose boss is his rival for Kirk's daughter. With one day left in his probation, they goad him into a fight.
After Burton kills Dad Mason and makes it look like a suicide, Ace Cooper arrives to investigate. He poses as a coward during the day but at night he becomes the daring Dude Bandit.
The wealthy owner of an iron foundry dies, and his greedy heirs are outraged when they find out that he left his entire estate not to them but to the foreman of his foundry.
A Parisian cop sets out to solve a sudden series of crimes, including robbery and blackmail. Based on a novel by Émile Gaboriau.
Shortly after Dr. Allen Forrest, who is involved with aircraft production for the United States government, invites his young nephew and business partner, Leonard White, to live in his home, idle gossips begin to spread rumors about Leonard and the doctor's pretty wife Madelyn. At first, Allen refuses to believe the stories, but gradually he becomes suspicious. One night, the doctor hears a noise in Madelyn's room, and when he rushes in, he is shot in the arm. The young man jumping from Madelyn's balcony resembles Leonard, and the doctor, deeply hurt, accuses his wife of infidelity. Madelyn is on the verge of killing herself when a secret service agent appears, reporting that the German spy who attempted to steal secret documents from the doctor's home the night before had been apprehended.
