Science fiction serial.

Financial troubles force Nell Carroll, a thoroughbred, to seek employment in a detective agency which has just taken up the trail of a very baffling jewelry robbery in an exclusive summer colony. In order to work from the inside, she is sent to the place as the Baroness Du Vassey.

Spanish coquette Tula Moliana finds herself encumbered with two husbands, and to get a divorce from the first, Senator Wakefield, she engages Jim Blake, the fiancé of Helen, the senator's daughter, to be her correspondent. Jim agrees to help her but finds himself entangled in a web of deceit and has difficulty in making excuses to Helen for the numerous adventures in which he becomes involved, especially when a jealous rival pursuing Tula threatens his life. Matters are cleared up when Helen discovers he has been victimized, and Tula accepts her first husband. This film is lost.

A young orphan girl, courted by an unpleasant older suitor who has a hold over her adoptive mother, falls in love with Fairfax, a young stranger at a party. A group of bootleggers try to get away with the loot stashed previously within Fairfax's mansion; Mysterious faces peer into the windows and shadowy figures stalk the hall. One of the bootleggers is killed and the young stranger becomes the prime suspect.

Helen Merrill sings and dances in the rough Western mining town of Nugget City, where she befriends Myrtle Cadby, whose husband Jake cruelly abuses her. After a particularly vicious beating, Myrtle, seriously injured, shoots Jake. As she lies dying, she gives Helen a letter of introduction to a man she was to have married in the East, urging her to leave Nugget City. Before she leaves, Helen overhears Bill Sheridan and "Snipe" Roach scheming to sell Charles Taylor, a wealthy New Yorker, a salted mine, with the assistance of George Reed, Taylor's mining agent. Helen goes East and learns that Taylor is the man whom Myrtle was to have married, but because she immediately falls in love with him, she conceals her own identity and masquerades as Myrtle.

Brice, a secret service agent, seeks information regarding stolen silver which disappeared from the government in 1804. Hade and Milo seek the fortune for themselves, as do the "conches" natives of Florida since the time the money was buried. Claire, half sister of Milo, falls in love with Brice, who is captured by Milo and Hade and taken to an island where he is to be killed.

Richard Boyd, a wealthy idler who has inherited the Boyd Shipping Company, decides to prove himself to his fiancée, Pauline. A fleet of ships on which the company has an option is coveted by Oriental merchant-tycoon J. Young. Aided by Andrew Dunn, general manager of the Boyd concern, Young has Boyd and Pauline shanghaied; and Sam, his Negro valet, follows. Following a spectacular shipwreck, the couple are rescued; there is a race between a hydroplane and a motorboat; but after a series of exploits in Young's stronghold, Richard, aided by Sam, gets the ships and the girl.