To help secret serviceman Bill Parsons in pursuit of the thieving Benson gang wealthy criminologist Henry Avery sends his assistant Blinky to cover the waterfront while he attends a reception at the home of Mrs. Cornelius Westervelt. At the soiree he meets gang member Alice Carter while also discover the gang’s cache hidden there. Captured Parsons is saved by Blinky, and the pair foil the gang’s attempt to rob Mrs. Westervelt and her guests.
Ruby Blackwell, typical young girl of Arizona, lives with her brother Tom, and their widowed mother in a cabin in the mountains. One day Tom takes Ruby on a lion hunt. They track a puma, or mountain lion. Tom shoots the beast, which, wounded, bounds into the canyon. Tom instructs Ruby to proceed to the ridge and await him there, while he follows the puma up the mountainside. Ruby discovers the cubs belonging to the puma which Tom has shot, and she immediately becomes so engrossed in playing with the huge kittens that she forgets the rendezvous her brother had appointed. Tom finally locates her. The cubs are taken home. They grow up around Ruby like friendly dogs. Pete Lopez, a bad Mexican, who admires Ruby very much, tries to steal one of them at night, after Ruby has refused to sell the animal to him, and the baby puma defends itself vigorously until Tom and Ruby rush to its rescue...
Professor Duane, an ethnologist, and his assistant, Roscoe Harding, plan a journey into the wilds of Hindustan. Harding is in love with Lydia, the daughter of Professor Duane, and they are engaged to be married. Lieutenant Tavish, a British army officer, is attracted to Lydia and plans to take her away from Harding by fair means or foul.
Drifters Tom Williams and Joe Morgan have a chance meeting with the sheriff's daughter and learn that her brother Jim is being held prisoner in Line Hollow by Wolf, who aspires to be the next sheriff. They aid the sheriff in finding the outlaw gang and rescuing Jim. Tom decides to stop drifting and stay near the sheriff's daughter.
In Africa a typist is framed for killing a diamond smuggler who betrayed her father.
As a baby, John Ermine is stolen from a wagon train by the Crow Indians and is adopted by Chief Fire Bear. John grows to manhood, ignorant that he is a white man until his parentage is disclosed to him by Crooked Bear, a white hermit who is on friendly terms with the Crows. Crooked Bear teaches John the language and customs of the white man's civilization, impressing upon him that it is his sacred responsibility to keep peace between the white men and the Indians.
Brothers James and Allen Mornington are both addicted to cocaine and both believe that their addiction is caused by a hereditary failing. James rises to the position of judge, but when Allen is brought into his court on drug charges, James resigns. The two brothers, along with James's daughter, Hilda, then retire to the country to fight their desire for drugs.
Holmes and Watson match wits with an opera star intent on blackmailing a king.
Captain Angus Swope (Noab Beery), known as The Black Yankee, skipper of the Golden Bough, treats his crew shamefully and he treats women no better, as evidenced by his handling of a woman he has abducted, together with her baby daughter, Mary (Sally Blaine), from seaman Newman (Willard Robertson). When the woman dies as a result of his cruelty, he brings up Mary as his own daughter.
Orphan, Audrey Bedford takes the blame for her half- sister's gem theft and later exposes her employer as her crooked husband.
A blackmailed ex-thief is executed for a murder he didn't commit.
Jane Croft is the subject of cruel gossip in Silver Creek, Arizona, in 1880, and is nicknamed "The Sage Hen." The Home Purity League drives her out of town with her son, John. She sends him back to town on a horse when they are attacked by Indians. There he is adopted by the Rudds; and when they move away, Jane loses contact with her son for 20 years. In the meantime, she becomes housekeeper to George Sanson and a "mother" to his daughter, Stella. A gold rush brings John back as a lieutenant of cavalry. He falls in love with Stella, but Craney, a gambler, threatens to expose Jane's past unless she gives Stella to him. The father is killed, but John saves his mother and Stella from further jeopardy. Jane confesses her past to her son and is able to find happiness after years of sorrow.
In Hell's Valley, Texas Ranger Captain Wally kills Jose Valdez, leading Jose's brothers, Carlos and Manuel, to seek revenge at the Flores ranch. Wally is wounded pursuing them but is saved by Rosita Flores, his original sweetheart's daughter, who nurses him but secretly seeks his torture for her father, and also for herself. Carlos and Manuel fall for Rosita, but she, in turn, falls for Wally, leading to Carlos accidentally killing Manuel and Don Flores killing Carlos, with Wally and Rosita's relationship solidified.
A native Californian guide is discharged by the leader of a wagon train because he dares to make love to the latter's daughter. Sometime later he comes upon them again and is in time to save the girl he loves from an attack by the Indians.
After his wife has run off with another man, New Yorker Bide Bennington decides to stay in Europe. After hearing of his wife's death years later, he returns home but finds it lonely there and heads West. While he is gone his house is robbed, and the leader of the crooks, Richard Glendo, leaves Bennington's coat and identification on an East River pier. The newspapers pick up on this and announce Bennington's "suicide." Since he is now officially deceased, Bennington decides to start life all over again -- but first he must foil a scheme by a gang of con artists, who have forced pretty Constance Brent to pose as Bennington's widow so that they can lay claim to his estate.
A reporter and a detective team up to solve the murder of a nightclub singer who had been involved in a divorce scandal.
While in Europe, Chaddie Green, a society girl, discovers that she has been left penniless. She returns to the United States and meets Duncan MacKail, who is equally broke though he owns grainland in the West. Duncan and Chaddie are married and go west to homestead. Duncan hires Ollie, a Swedish caretaker, who frightens Chaddie. When business takes Duncan away, Chaddie goes to take care of Percy Woodhouse, an Englishman who has become ill at his place fifteen miles away. Her horse runs away, and she is forced to spend the night there. She sleeps under a wagon, but Duncan is nevertheless angry and jealous.
Penny arrives in the West by aeroplane. She is considered a suspicious character and thrown into jail. Kurt Walters, a ranch foreman and deputy sheriff, discovers that she is the same girl that his friend, Jo Gary, met in Chicago. Gary fell in love with her, but she confessed she was a thief. Since Penny claims she wants to reform, Walters releases her and sends her to live with Mrs. Kingdon. In spite of her teasing and taunts (or perhaps because of them), Walters finds himself falling in love with Penny.
War hero Captain November Jones tries to sneak into his hometown of Gold City, Nevada undetected but when he rescues a child from being run over by a train he’s recognized and obliged to receive the town's congratulations. Meanwhile, unscrupulous stockbroker Samuel Barnes and adventuress Teddy Craig are trying to get control of the Bluebird Lode from New Yorker Jackson J. Joseph, who is coming West to meet his daughter Nedra. Teddy tries to ensnare November to help fight Joseph, claiming he's trying to take her mine, but he refuses. Teddy's accusation of Jones's cowardice does not bother him until he falls in love with Nedra, who shuns him, believing Teddy's rumor. When Mr. Joseph is kidnapped and Jones saves him Nedra learns the truth and agrees to marry him.
A Playboy inherits a Western ranch on the condition that he shall run it properly for 6 months. A villain makes an attempt to distract him from reaching the goal, but he, no longer the wastrel of yore, persists and becomes full owner of the property.