Rigging a horse race, Don Carlos wins a lot of money. When he loses his winnings at the gambling table, he shoots the dealer with Horton's gun. Horton is arrested but cannot prove his innocence.

Homesteaders are moving into the valley settled many years ago by rancher Craig Dolan. He wants to keep them out by legal means but his nephew Bart brings in outlaws to drive them out. The Lone Ranger is on hand to help the homesteaders battle Bart's men as he overcomes traps, ambushes, burning buildings and other obstacles in his attempt to bring peace to the valley.

A team of two-fisted insurance investigators (one of whom disguises himself as The Masked Marvel) endeavor to discover and thwart the loathsome saboteur Sakima.

A corrupt politician adopts a young girl. A few years later he finds himself falling in love with her, but discovers that she in turn loves a rich young bachelor.

While a ship's captain is being slowly poisoned, a gang of thugs try to take over the ship.

A scientist invents a poison gas; the villain and his gang will do anything to get the formula; our hero, "Lightning Hutch", is sent to save the scientist, the scientist's beautiful daughter, and the formula.

A team of two-fisted insurance investigators (one of whom disguises himself as The Masked Marvel) endeavor to discover and thwart the loathsome saboteur Sakima.