Action

John Travers and Yak, his faithful Indian sidekick, pick up where a murdered sheriff leaves off, and try to nab the mysterious Shadow.

A young mechanic gets a job with a small airline, which he helps win a mail contract. A rival airline plots to destroy it in order to get the contracts for itself.

An accomplished aviator sets out to locate treasure hidden by one of his ancestors. He encounters interference from various adversaries.

Chandu consults his crystal ball and sees that Nadji, Princess of Egypt, is in danger. She is about to be sacrificed by the black magic cult of Ubasti. Headed for the magic island of Lemuria, he is shipwrecked , washed ashore and captured. He becomes invisible, escapes and after numerous detours is able to rescue the princess.

The Marshal sends John Weston to a rodeo to see if he can find out who is killing the rodeo riders who are about to win the prize money. Barton has organized the rodeo and plans to leave with all the prize money put up by the townspeople. When it appears that Weston will beat Barton's rider, he has his ...

Tobin is after the bandit Zanti who killed his parents. He finds him just as Zanti is about to kill Dusty and kidnap Ruby. Saving the two, he goes after Zanti. He catches him but Zanti escapes the Sheriff's handcuff's and this time Tobin has to chase him into the desert.

A greedy businessman-turned-renegade foments an Indian uprising against the coming telegraph to perpetuate his economic stranglehold on the territory.

A mysterious criminal known as The Whispering Shadow commits crimes by means of a gang he controls by television and radio rays. Jack Norton, whose brother was murdered by The Whispering Shadow, suspects that the eerie Professor Strang - whose ghostly wax museum contains figures far too lifelike - may be involved in the crimes.

An adventure serial presented in 12 chapters. Inventor Thomas Edmunds uses a super plane, 'The Phantom,' to protect his new anti-gravity invention, the Contragrav, from theft.

James Kincaid controls the local water supply and plans to do away with the other ranchers. Government agent Sandy Saunders arrives undercover to investigate Kincaid's land swindle scheme, and win the heart of one of his victims, Fay Denton.