Released in both sound and silent versions, this ten-chapter serial starred former cowboy ace Jack Perrin and chapterplay veteran Louise Lorraine. One of a group of Americans steals the Jade Box, which holds the secret of invisibility; a murderous Oriental cult wants it back and tracks them down.
Flighty Helen Halverson decides that she wants to marry Big Jim McKenzie, the boss of the logging camp her father owns, after he is temporarily blinded after he crashes his toboggan into a tree in order to avoid hitting Helen. She convinces her cousin Adele--who is actually also in love with Jim--to get him to propose. Jim's sight returns and he and Helen marry, but on the day their child is to be born, he goes blind again. Frustrated by being married to a blind man, Helen falls in love with his assistant Jean Du Bray. Complications ensue.
In the early eighteenth century, pirate captain Jean Lafitte fights a rival pirate and wins a treasure and a beautiful female captive. Although the girl offers herself to Lafitte to save her English lover, Lafitte makes him walk the plank. The girl then places a curse on Lafitte and his descendants, preventing them from ever knowing the true love of woman. Two hundred years later, in the West Antilles, painter Paul Winthrop poses Joe, a pearl diver, as a pirate. Upon seeing the completed painting, each envisions the earlier situation. Later, Joe finds the buried treasure and sails to New York, where he learns that the portrait has also attracted wealthy Lily Demorest and her suitor, Robert Spurr, a "financial pirate."
Hugon, a Canadian backwoodsman who is respected for his strength both of limb and of character, falls in love with Marie even though she has another sweetheart, a young man named Gabriel. Realizing that Marie favors Gabriel, Hugon good-naturedly offers to help the boy develop muscles and stamina but soon abandons the hopeless task. Meanwhile, Roque and his group of crooked surveyors have made plans to swindle the woodsman out of his property.
Following his mother's death, John Gregory becomes the "Eagle," a thief determined to get even with the mining company that stole his family's fortune. Breaking into the company’s head office he discovers that another robber has preceded him and killed the night guard. When he is falsely accused, Lucy the girl he loves, discovers a written confession from the real killer just before John is to be hanged and rides wildly to the jail to save his life.
Ex-convict Dale Revenal arrives at Dudley Appleton's ranch bearing a letter of introduction from John Silver, Appleton's old friend. Appleton hires Dale, who, through his winning manner, soon wins the respect of the ranch hands and the love of the ranch owner's daughter Mary Jane. Believing himself unworthy of her, Dale tells Mary Jane that he has a wife and child in Arizona, and she reluctantly agrees to marry Jack Nelda, a local rancher. Nelda realizes that Mary Jane is still in love with Dale and plots with Bessie Dupont and her brother Pinto to kill him.
The Door Between was based on Anthony the Absolute, a novel by Samuel Merwyn. The story begins in Japan, where American musicologist Anthony Eckert (Monroe Salisbury) is busily collecting records of authentic Japanese folk songs. While thus preoccupied, Eckert makes the acquaintance of a drunkard who has vowed to track down and murder his errant wife.
When Marie Louise, the daughter of the town factor, returns home from school, Julio Sandoval, a reckless young half-breed ruled by his animal instincts, develops a passion for the girl, even though she is engaged to Captain McKeever of the mounted police. Meeting Marie when she is alone in the woods one day, the half-breed carries her to his cabin on the mountain top where he collapses from an attack of mountain fever brought on by overexertion.
Gerald, the somewhat frail son of a wealthy New York family, is bested at the beach by Bill, a strapping young cowboy from Arizona. His fiancée Mary, ashamed of Gerald's "yellow streak", leaves him and goes by train to visit some friends in Arizona, with Bill in tow. Gerald follows them, and before long he and Mary winds up captured by Yaqui Indians and Gerald must prove to Mary that he is not the "weakling" she thinks he is by coming up with a plan for them to escape their captors.
Thinking that he has lost both his money and his beloved Nora's in a bad investment young New Yorker Ted Ewing arranges for his own murder. Suddenly he discovers the money is safe and has in fact doubled and sets out to cancel the contract on his life. But will he be able to do so in time?
Esra Kincaid takes land by force and, having taken the Espinoza land, his sights are set on the Castro rancho. Government agent Kearney holds him off till the cavalry shows up and he can declare his love for Juanita, called “the Rose of the Rancho.”