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.
Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibility chemical and plans to build a mercenary army of invisible men.
Irrepressible Helen Rhinelander, the daughter of a railroad president. A dastardly villain, Segrue, however, desires not only Helen but also the plans for a new railroad.
Madrid, late 19th century. A wealthy woman is found murdered in her home and her maid seems to be the main suspect; but her statement further entangles the case.
A tale of an international counterfeiting-ring operating in Mexico starts with Patrick Nevil viewed as a suspicious character by newspaper woman Agnes Stuart, who is working on a story to expose racketeering night-club owner Doc Lilley.
In the studio where the famous director Eric Von Berg reigns, Pierre Vanier, the male star of the film and the lover of Berg's muse, dies while rehearsing a scene.
All-American singing cowboy Jimmy Wakely went below the border in this musical Western from the assembly line at Monogram, performing such ditties as Adios Mariquita Linda, Rose of the Rancho, the inevitable La Cucaracha, and his own title tune.