Adventuress Stefanie Paoli forsakes her lover, humble fisherman Gabriel Barrato, for the arms of a nobleman, the Marquis de Mohrivart.

Helena Richie leaves her drunken husband, who had killed their child, and goes to Old Chester in Pennsylvania with her friend Lloyd Pryor. Helena adopts a homeless boy, David, who had been a ward of the town's minister, Dr. Lavendar. Helena's true husband dies, but Lloyd Pryor, now tired of Helena, refuses to marry her. Helena confesses to the minister about her actual relationship with Pryor, and Dr. Lavendar forces her to give up her son. Helena agrees, certain that she is an unfit mother. Helena pleads her case and fights for her maternal rights.

Acting on her love of nature and loathing of titled fortune hunters, heiress Mary Hamilton leaves home with her secretary, Peggy Ingledew, to join a band of roving gypsies. One of Mary's suitors, Sir Kenneth Graham, follows the two young women into the woods, dressed in gypsy garb, but when Jack Hutton decides to rid his forested land of gypsies, Sir Kenneth is thrown into jail.

A woman sacrifices everything for her husband's career.

Sonia, a Russian dancer, comes to New York seeking her fortune. She marries Peter Derwynt, a young architect, but their marriage is not a good one. Sonia falls under the spell of a rich Broadway mogul, Jimmy Sutherland, whose wife is in love with Peter. The mix of relationships comes crashing apart when Sutherland ends up murdered.

A feisty, independent young woman, Damophilia Illington ("Phil" for short, hence the title), the daughter of a progressive university professor, is devastated by the sudden death of her father. The town's banker, an arrogant stuffed shirt, wants to marry Phil and has himself declared her guardian. Not wanting to marry him, she quickly leaves town and lands a job at a nearby university as an assistant to a professor of Greek literature (an area in which her father trained her) who is bitter and resentful after the breakup of his engagement to a woman who, it turned out, had been lying to him. "Phil", however, is determined to win him over.

In the poorest section of the city lives Nell, who spends her days at her grandfather's bird store, finding constant delight in the companionship of her feathered friends. One day Nell's grandfather is run over by a car driven by Mr. Morris, a millionaire, who offers to purchase a bullfinch at a large price in order to forestall a damage suit.

Fernande marries a man and schemes to get his wealth when his expected death occurs. But he dies before he can change his will. She next tries to kill the son who inherits, but he outfoxes her.

When his son is reluctant to fight for democracy Philip Nolan II shares with him the secret he has long held, the treason of the first Philip Nolan "The Man Without a Country." He explains how the elder Nolan played into the hands of Aaron Burr; how Thomas Jefferson was elected president over Burr; how Alexander Hamilton prevented the conscienceless Burr becoming governor of New York; the duel between Hamilton and Burr; how Philip Nolan was later arrested on his wedding night for aiding Burr, who had conspired to start a rival government in the south to wage war against the United States, and how he was later banished from the United States for saying "Damn the United States! I wish I might never hear its name again," and how Philip Nolan died kissing the flag of the country he had execrated. Understanding how important freedom is the younger Nolan rushes to enlist.

Montgomery Jackson is initially afraid of conflict, refusing to enlist despite pressure from friends and his fiancée Bettie, but later joins the American Expeditionary Force after Bettie volunteers as a Red Cross nurse.