Brakeman Jack Foster is the hero of the story. A happily married father of two, his lack of caution while following his dangerous calling is a constant source of worry to his wife and to his close friend conductor Jim Stevens. Jim trying to point out the risks Jack is continually running tells him stories about what leads to a wreck, how the brakeman lost his leg, another man an eye, and how a third man was knocked from the roof of a boxcar when making a coupling. Lesson learned Jack becomes a model of caution and efficiency.

Wealthy capitalist, Clinton Reynolds, and his wife, Laura, have lost their son, Arthur, kidnapped and possibly dead. Attempting to write a wrong in his factory, he adopts the daughter of one of his workers who is killed on site. The girl, Rose, grows up resentful of her adoptive father and as she grows older, seduces him in order to break up his marriage. Long lost Arthur returns and, finding his parents' married life in disarray, becomes romantically involved with Rose in order to end the relationship she has forged with his father. Reynolds comes to his senses and makes amends with Laura, at which point Arthur leaves Rose.

Phil Kelly, a veteran of the Spanish-American War, serves as an American spy during World War I unknown to his mother, fiancée Rose Lockely and friends, who sadly question his loyalty when he fails to enlist.

Dick hastily marries a young woman, yet his wealthy father rips them apart. Unbeknownst to him, a son is born. Years later, Dick is in happy, but childless marriage when they decide to adopt a child. By chance and unknown to him, the boy is his son.

A dramatization of the life of real-life major league baseball player Mike Donlin.

Virginia Lee, daughter of a United States Senator, meets David Starr, a wounded United States soldier, in a field hospital in which she is serving as a Red Cross nurse. Star returns to the trenches and Virginia's base hospital is moved. Starr is again wounded and invalided home. Virginia has lost sight of him. She returns to America; and in Washington, Starr sees her at a ball at the French Embassy. Feeling her too far above him, socially, he goes West, whither Virginia's father takes her, on a business trip, and there a vital drama is enacted.

Mazie King, an adventurer, thanks to the good patronage of Mr. Niel, a society man, is invited to a birthday reception. Taking advantage of the opportunity, she lays out her plans to get away with some valuable jewels. Jim O'Bryan, the tool, sneaks in through a side window.

The series of adventures and hardships experienced by the Chevalier de la Graverie as seen through the eyes of his devoted dog, Black.

Twin sisters Rosetta and Lola Gelardi live happily with their aging father, Professor Gelardi, until their Sicilian village is destroyed by an earthquake. Unable to find Lola, the professor and Rosetta move to New York, where she obtains employment as a stenographer to author Aubrey Hapgood. Rosetta captivates Aubrey and his friends, but Mildred Sanders, who had hoped to win Aubrey for herself, tries to ruin Rosetta's reputation. On a drive with Aubrey, Rosetta relates her life story, whereupon Aubrey, claiming he loves her, takes her to an inn. Although he promises to marry her, she later reads of his engagement to Mildred. Rosetta shoots herself, after which Lola appears to avenge her death by causing the ruin of Aubrey's sister. Aubrey fires on Lola, but Rosetta awakens in his car and realizes that it was all a dream. While the chauffeur repairs the car, she and Aubrey walk into town to find a preacher.