J. Charles Davis Productions

In this movie serial, Professor Sturgess invents a miraculous engine which can draw unlimited power from the atoms of the air. When the professor is killed, his daughter and her fiance must fight to keep the secret of the power engine out of the hands of evil Weston Dore and his henchmen.

Story of a Cowboy who met challenges with action! He matched his fists against another man's diabolical brain!

Against explicit orders, a vainglorious cavalry major insists on counterattacking a gang of hostile Sioux Indians. His captain refuses to comply and is arrested for insubordination and cowardice.

Fired from his job for shirking his duties, the 'Knight of the Plains' Bart Miller stumbles across a would-be stagecoach robbery and he rescues damsel in distress Betty Taylor. He takes Betty and her pretty girlfriends to the ranch of her father Bill Taylor. Meanwhile Taylor's foreman Luke Hatton is plotting to rustle his boss' herd with the aid of the corrupt lawyer Harkness.

Richard Kingsley, son of a financier, trying to aid Marjorie Crenshaw and her sister during a raid on a New York roadhouse, is arrested. His father, enraged by the bad publicity, threatens to disinherit him if he doesn't go to Colorado in search of a mine....

A ranch foreman captures a notorious gang of gold thieves. He ties them up and leaves them for a pursuing posse while he goes out to find the gold they stole. When the posse arrives, the gang's leader convinces them that the foreman is actually the gold thief, and the posse sets out in pursuit of him.

Crooked Bluff Hardcastle is appointed by the court to take care of the business affairs of pretty young Helen Saunders' ranch, which is about to go out of business, but Hardcastle is secretly planning to swindle her out of the ranch. He is thwarted by cowboy Jim Donovan and his friend, banker George Masters, who buy Helen's ranch at auction. Angered, Hardecastle sends his hired thugs to get rid of Donovan and Masters so he can get his hands on the ranch.

Tex Sherwood has just come into possession of a valuable piece of land that will be irrigated by a new dam. Banker Holman knowing the deed must be registered the next day, offers a $50,000 reward for Tex's capture.

10 chapter adventure serial. [1] “The Fatal Box,” released 1 June 1925 (three reels); [2] “A Tragic Legacy,” released 8 June 1925; [3] “Daring Danger,” released 15 June 1925; [4] “A Leap for Life,” released 22 June 1925; [5] “Defying Fate,” released 29 June 1925; [6] “Trapped by Outlaws,” released 6 July 1925; [7] “Pendulum of Death,” released 13 July 1925; [8] “The Miracle Rider,” released 20 July 1925; [9] “Vengeance of the Mystery Box,” released 27 July 1925; [10] “Vindicated,” released 3 August 1925.

With help from his talented horse and dog, a marshal captures bandits.

A mining expert helps a girl and her kid brother defeat an evil claim jumper.

Known as the White Outlaw for the kerchief he wears, Johnny Douglas decides to go straight. Getting a job as a cowhand he gives the kerchief to his new friend Ted Williams. When the rancher's daughter, the girl friend of Ted, agrees to marry the man holding the note on the ranch so he won't foreclose, Ted uses the kerchief when he robs the stage. When Ted is spotted and jailed, Johnny has a plan to return the money and clear Ted.