Edward Halperin

Sgt. Renfrew and Constable Kelly go aloft to search for a plane missing with a shipment of gold from the Yukon Mine Company. Inventor Speavy has devised a power ray which disrupts electrical impulses, and Morgan and his gang of crooks has brought in Prof. Lewis to increase the ray's range, telling him he's helping the government develop this new weapon. Speavy spills the beans to Prof. Lewis and his daughter Madeleine,and Morgan threatens to implicate them in his crimes unless they cooperate. Morgan kills Speavy when he tries to warn Renfrew, but when Madeleine stows away on board the doomed plane Renfrew is piloting, will the crooks be able to make Prof. Lewis use the power ray to bring the plane down?

The Royal Mounties are called in when one of the armored cars owned by Maxwell, containing a gold shipment, disappears with driver George Hill suspected of trying to get away with the gold. Actually, Maxwell and two henchmen had poured acid on the brake lines, causing the car to crash. Genevieve, daughter of the Mountie chief, suspects Maxwell and Thomas Hatch, president of the bank shipping the gold, but she quickly becomes more trouble than help to Sergeant Renfrew in charge of the investigation. Renfrew and Constable Kelly drive the next shipment but Maxwell plans to make them crash the same way as Hill did. Renfrew steers the vehicle into a hillside and this gives him an idea of what happened to the other car.

When the plane owned by the "Yukon and Columbia Mail Service" crashes, RCMP Sergeant Renfrew (James Newill) and Constable Kelly (Dave O'Brien) suspect murder. Their suspicions are confirmed when Renfrew finds the control stick has been jammed, forcing the plane to fly in one direction until the gas ran out. Mine owner Louise Howard (Louise Stanley) reports that her superintendent is missing. The Mounties find him murdered and that too has been made to look like an accident. A new mail service pilot, Bill Shipley (Warren Hull), arrives. He had gone to training school with Renfrew but had been cashiered for misconduct. The Mounties discover that Raymond (Karl Hackett), who had been working for Louise, really owns the flying line managed by Yuke Cardoe (William Pawley.) They find proof that all the gold from the mine isn't being turned over to Louise, and suspect that Raymond and Yuke are stealing the gold and shipping it to Seattle by plane.

A story of cattle rustling and double identities.

The story is set in Cambodia in the years following WWI. Evil Count Mazovia (Roy D'Arcy) has come into possession of the secret methods by which men can be transformed into walking zombies and uses these unholy powers to create a race of slave laborers. An expedition is sent to the ruins of Angkor Wat, in hopes of ending Mazovia's activities once and for all. Unfortunately, Armand (Dean Jagger), one of the members of the expedition, has his own agenda.

After being fired from his job at the Marriage License Bureau, a clerk turns to matchmaking.

Un doctor investiga sobre hechos sobrenaturales y la ejecución de una mujer acusada de asesinato le dará ocasión de probar sus teorías. Pero se produce una inesperada desviación de su propósito cuando el espíritu de la difunta va a parar al cuerpo de una mujer inocente.

Una pareja de enamorados viaja a Haití invitada por un misterioso hombre que sólo pretende conseguir a la chica. Para alcanzar su objetivo no duda en pedir ayuda a un siniestro personaje, llamado Legendre, que convierte a las personas en zombis.

Durante la Primera Guerra Mundial, Joan Morant, joven consentida de la alta sociedad, se va a Francia con la esperanza de reunirse con Reggie, el hombre adinerado de quien está enamorada. El oficial al mando del regimiento de Reggie, el teniente Tom Pike, que era el dueño del taller de coches de la ciudad de origen de Joan, se siente contrariado ante la presencia de ella e intenta demostrarle que su clase social no significa nada en tiempos de guerra. Cuando Reggie es llamado al frente, se emborracha y Joan acude en su lugar...