
John Warren Hull (January 17, 1903 – September 14, 1974), known professionally as Warren Hull, was an American actor, singer and television personality active from the 1930s through the 1960s. He was one of the most popular serial actors in the action-adventure field.
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Feature version of the American serial film of the same name, edited for exhibition overseas only, never exhibited in the USA in any medium, and evidently a lost film.

The East Side Kids discover that one of their own, Danny, is torn between staying in school and becoming a boxer, and is getting mixed up with gangsters.

The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spider to save the country.

A man accused of planning a prison break turns the tables on escaped cons by leading the group into the desert.

A recently retired fire captain suffers from boredom, until one of his friends is killed battling an arson fire. It becomes his purpose in life to track down the arsonist. As he gets closer to finding the killer, things become dangerous for him and his family.

A small town doctor suspects the stranger in town is promoting an oil swindle. The fourth entry in the "Dr. Christian" series of six films.

Gene inherits a meat-packing plant, then faces stiff competition from snooty Ann Randolph, rival owner determined to do him in.

A hardworking secretary for a rich woman finds herself engaged to the woman's son and accused of a murder she didn't commit.

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.

Second serial featuring The Green Hornet and Kato.
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