A Secret Service agent seeks his missing brother in Africa, and finds his mission complicated by ivory thieves, a girl with a mysterious past, and a troublesome gorilla.

Struggling young painter Ruth Elliott has written her Eastern friend Mildred Colburn that she has gained fame in the West as an artist. When Mildred stops to visit on her way to Honolulu, Ruth hires Peter Neyland to pose as her chauffeur for five hours. Peter is actually a wealthy young man who accepts the offer as a lark.

Roma Wycliffe, a high-spirited girl bored with the lavender-and-old-lace atmosphere of her Aunt Henrietta's estate, discovers that her grandmother was a gypsy and decides to become one herself.

Muggsy Mulane, a waif who wears boy's clothing, jumps a freight train to the country after Jimmy "the Eel," the leader of the gang of crooks with whom she works, is arrested. In the village of Cottonville, Muggsy befriends Aunt Sarah, whom she later discovers is Jimmy's mother. When Muggsy learns that the greedy Judge Cotton, who holds the mortgage on Aunt Sarah's property, is planning to foreclose, she threatens to blackmail him, and he relents.

Famed aviator Bruce Gentry is working with scientist Andrew Benson, setting out to uncover the origin of a deadly secret weapon---an electronically controlled flying disc which can be directed at moving or stationary targets. The disc was master-minded by an enemy agent known only as "The Recorder" because...he speaks entirely via recordings. Aided by rancher Frank Farrell and his sister Juanita "Nita" Hodges, Gentry consistently foils "The Recorders" schemes, which are carried out by "The Recorder's" henchmen, Krendon, Allen and Chandler, including an attack on the Panama Canal.

Richard Bolton, a timid bookworm, is too shy to declare his love for the beautiful Helen. While she remains unimpressed, however, the Countess Wintershin pursues him relentlessly, to Richard's embarrassment and her jealous husband's dismay.

The story of a boy, a dog, and a man. The boy discovers he is heir to a shipping line, and travels to Los Angeles, accompanied by inventor/radio operator Bob Whitlock and Irene Blaine. Their journey is aided by Pal, a wolf dog.

Robert "Bob" Wesley horrifies his father, Admiral John Wesley of the Naval Advisory Board, by failing his examination at the Annapolis naval academy. Bob seizes the chance to redeem himself, however, when he overhears Hanson, the butler, plotting with German agent Count Von Ornstorff to deliver his father's plans for the Atlantic coastal defenses to German Baroness Von Hulda. In Baltimore, Bob meets the baroness' ship and, with the aid of an old college professor, makes her his prisoner. Having impersonated a woman in the college play, Bob disguises himself as the baroness, rendezvous with the spies, and obtains the plans.

Unattractive and poor Polly Gordon, is taken to the college dance by eligible Vincent DePuyster only as part of a fraternity initiation. Suitors flock to her, however, when she inherits half a million dollars from her aunt, but she grows cynical and dismisses them.

Patricia Parker, on the advice of her father, leaves her life as a chorus girl for the bucolic surroundings of Silas Wainwright, an old friend of her father's.

Molly, a glamorous clothing model in New York, though yearning for a life of luxury, spurns the advances of her boss's son in favor of a shipping clerk, late of the backwoods.

Working as a wardrobe girl in a cheap traveling stock company, Mamie Judd secretly loves Jenks, the leading man, who scarcely notices the young girl. She saves Neal Selden, son of a small-town banker, from being accused of robbery and murder, acts committed by the company's manager and leading lady.