The German adopted-daughter of a Belgian innkeeper is threatened with internment by him if she reveals to the British billetees that he is a spy. However, she is in love with one of them and helps them.
When Madge, a clerk in a flower shop, is sent to a bachelor's apartment to deliver and arrange a bouquet, she discovers a guest, young and handsome Bradley Lane, taking a bath. She loses her job and becomes a playgirl until Bradley, her true love, asks her to marry him.
A couple of French noblemen-types constantly argue (Sterling and Sennett). They're rivals for a lovely Mabel's attentions. While attending a picnic near the Hudson River (on a rather cold-looking day), She apparently favors Mack over Ford, so, obsessed with revenge as he usually is in Keystone comedies, he sets her little dog out on a raft and dares chicken- hearted Mack to rescue it.
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.
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.
Louis and August Siever, the twins sons of a German father and American mother, are traveling in Europe when war breaks out. August joins the Kaiser's army, but Louis, a supporter of the United States, is practically made a prisoner in Berlin for a year while he tries to prove his American citizenship. After a violent confrontation with Louis, August steals his brother's passport and leaves for New York with Gerda Anderson, a German spy.
Little orphaned Kate lives happily in a New England lighthouse with its old keepers, Philemon, Peter and Captain Bartholomew. When Kate falls sick, the prudish Philemon hires Miss Summerville, a live-in nurse, to care for her, but is concerned about possible gossip. To alleviate the situation, each keeper and Dr. Carlyle propose to Miss Summerville, but she rejects them all. After hearing that Captain Peyton, a lighthouse inspector, is scheduled to arrive, Miss Summerville makes sudden plans to depart without explanation. At the urging of Carlyle, she agrees to stay, but tries to avoid Peyton by turning off the lighthouse beacon.
After Fred, an orphan raised by his wealthy Uncle Oliver marries Clara over his uncle's objections, the two men become estranged. When Fred and Clara's child Paul is six years old, Fred insists that his uncle pay them a visit over Christmas. Uncle Oliver, a very lonely old man, begrudgingly accepts but refuses to behave amicably towards Clara or Paul.
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.
Newly elected police court judge John Fairbrother is impassioned when it comes to the laws affecting the dives and cabarets of the city, and promises equal justice for all.
Phyllis Narcissa, an underpaid children's librarian, eagerly accepts a dinner invitation from Horace de Guenther, one of her patrons, and happily entertains his invalid wife. Later, Mrs. de Guenther encourages Phyllis to meet with Mrs. Harrington, a dying rich woman whose son Allan, once a vigorous young man, was paralyzed in an auto accident. When Mrs. Harrington proposes to the librarian that she marry and take care of Allan in exchange for his wealth, Phyllis reluctantly consents. While struggling to cheer up the eternally gloomy Allan, Phyllis welcomes the visits of his friend, a doctor who informs her that her husband's paralysis may be psychosomatic.
Inconsiderate millionaire John Benson, philanthropist Oliver North, courageous Langdon Crane, wealthy idler Robert Curtis and Lydia Benson are among the passengers on an ocean liner that is sunk by a German submarine. Carried away by the currents to a tropical island, the castaways endure hardships which bring out their true natures.
Mrs. Standing, an old-fashioned country mother, sacrifices to put her son John through college so that he might have a better life. Upon completing school, John goes to the city where his financial success blinds him to the basic values taught to him by his mother.
In dire financial straits, businessman John Baird considers liquidating the bonds that are held in trust for his little daughter Margery. Failing to comprehend her husband's desperation, Virginia Baird refuses his request and, upon overhearing his lawyer advising him to utilize the bonds without consulting her, she decides to place them in the hands of George Drake, an old friend. Drake hijacks the securities, however, and their disappearance leads to the break up of the Baird's marriage, resulting in Virginia leaving the house. Attempting to console her father, Margery sets out on her pony to bring her mother home. But she is held up on the road by Captain Kidd Jr., who adopts her as his first mate, and the two children take up residence on a grass hut on a nearby island.
Police headquarters has been plagued by a series of robberies, culminating in the theft of a priceless necklace smuggled from Europe. The detectives are on the track of a gang led by master thief Ramon Mordant and his accomplice known as "the Face" because of his twisted and hideous countenance.
When Mrs. Harrison arrives in Harborsport for her vacation, she announces her plan to marry Gladsome, her daughter, to Vincent Bradshaw, the son of her financial advisor James Bradshaw. To keep Gladsome from socializing with the local fishermen, James drives them from his property, but they organize under her and force their way back. Arrested for rabble-rousing, Gladsome is bailed out of jail by James and later meets "Alphabet" Carter, a vacationing financial wizard, for whom she has an immediate attraction.
Nancy Glenn is a pupil in Pop Hogland's school for crooks. When, attired as a boy named "Spider", Nancy fails at her lessons as a pickpocket, Pop decides to pair her with Pliny Drew, a graduate thief and swindler.
During a raging storm, a baby is washed up on shore on an island in Greece and is adopted by the wealthy Stanhopes, who name her Lorelei. Eighteen years later, Lorelei, now a woman, invites her school friends to spend their vacation at her villa. One of her guests, Julie, is insanely jealous of Lorelei. One day Gerald Waldron, a disenchanted society fop, sails by on his yacht, accompanied by his social-climbing friend, Hartley Royce. Seeing Lorelei and her friends swimming, they decide to go ashore. Both Gerald and Hartley fall in love with Lorelei, and Julie rages, finding herself relegated to Hartley. Together Hartley and Julie plot to separate the lovers.
Orphaned after the death of their mother, Nancy Grimm and her baby sister Ellen are taken to the country where Ellen is adopted by the wealthy Walsh family. Nancy keenly feels the loss of her sister, and when the judge rules that she cannot visit Ellen without permission, she throws herself onto a bench, winning the sympathy of young attorney Chester Noble. Nancy is then placed in the Wick's home where she is treated as a servant. Miserable, Nancy cuts off her hair and, dressed as a boy, runs away.
When Judge Grant sentences Paul Rogers to jail on circumstantial evidence, Paul's sister Lena swears revenge.