The Trey o' Hearts

A safari sets out to find a meteorite that fell in the African jungle.

Don Winslow (titular hero of the serial "Don Winslow of the Navy") is reassigned to the United States Coast Guard, to guard the coast against saboteurs and sneak attacks.

A 15-episode serial involving the land rush, gold mines, stolen maps, etc.

The daughter of a man who has discovered radium on an African island is befriended by two people whose real goal is to keep the discovery to themselves.

Winters is after the Brand ranch, and his man Brett who is foreman there is rustling the Brand stock. But Tom is on to their game and breaks up their attempt to buy the ranch. When they plan to rustle their horses, Tom must not only rescue Danny Brand, who is their prisoner, but stop the rustlers.

A Canadian Mountie is assigned to bring in his brother, who was framed for the murder of a gold mine owner. Based on Robert W. Service's poem "Clancy of the Mounted Police."

Heads of rival lumber camps meet in a fight. Louis Lenoir, a renegade French Canadian, causes the death of "Big" MacDonald, a hard-fighting Scotsman whose life is guided by his dogmatic religious beliefs. His son, Ranald, is left to settle the blood feud. In spite of the pleas of his sweetheart, the daughter of a minister, he participates in a gang fight on the logs in mid-river just as a log drive to Ottawa begins.

Film serial from Universal.

From the Universal synopsis: Retired Inspector Blake of Scotland Yard learns that Lord Blanton has acquired the sacred "Love Ring"---a cursed jewel that has brought grief to its previous owners. Prince Darius seeks to obtain the ring, and the mummy of a princess of an ancient country to return them to his homeland.

Beyond Hell's Gate Pass is territory controlled by a man who calls himself King Carter; he uses a variety of schemes to prevent the railroad from being built, for fear it will finish his control of (what he considers) his land.

Rex the wonder horse's owner is murdered by Joe Regan, the leader of a band of smugglers. RCMP Sgt. Jack Gordon has been sent to capture the villain. Rex vows vengeance on Regan and helps Gordon capture him.

"Red" Davison(Buck Jones), the sheriff of Sun Dog, sacrifices his job and his good name to save his best friend, "Silent" Slade from the hangman's noose, following a framed-up court decision which sentences Slade to hang for the murder of "Scotty McKee (J.P. McGowan). Davidson allows Slade to escape from jail and follows him to aid him in proving his innocence.

A Montana cowboy battles lowlifes while preparing for a competition in Chicago.

The Saturday matinee crowd got two cowboy stars for the price of one in this lavishly budgeted western serial starring former singing cowboy Dick Foran and Buck Jones. The latter contributed deadpan humor to the proceedings, making Jones perhaps the highest paid B-western comedy relief in history. The two heroes defend the Death Valley borax miners from an outlaw gang headed by Wolf Reade. An extraordinarily strong cast -- for a serial, at least -- supported the stars, headed by Charles Bickford as Reade, Leo Carillo, Lon Chaney, Jr., and silent screen star Monte Blue. Leading lady Jeanne Kelly later changed her name to Jean Brooks and starred in the atmospheric RKO thriller The Seventh Victim (1943). Universal claimed to have spent $1 million on this serial and made sure to get their money's worth by endlessly recycling the action footage in serials and B-westerns for years to come.

Four youthful cadets are implicated in a series of murders, and must attempt to clear themselves of suspicion.

A famous scientist and his beautiful daughter travel to Indochina to find an ivory disc that has the formula for a deadly gas engraved on it. An evil doctor and his gang are also looking for it.