Benjamin Franklin Gates and Abigail Chase re-team with Riley Poole and, now armed with a stack of long-lost pages from John Wilkes Booth's diary, Ben must follow a clue left there to prove his ancestor's innocence in the assassination of Abraham Lincoln.
During a fashionable country house party, a guest suggests that everyone visit a nearby gypsy camp to have their fortunes told. Jack Harlow, the hostess's son, meets Draga, the gypsy chief's daughter, and immediately falls in love with her. Draga is also attracted to Jack, who persuades her to meet him secretly. Their secret meetings continue, and eventually, Jack convinces Draga to run away with him, despite the significant social divide and the disapproval their relationship would surely face from his family and her community. The plot centers on this forbidden romance and the ensuing dramatic conflict between their two vastly different worlds.
John Reeves, steel magnate, wagers with his son Chester that he can earn twenty dollars a week and live on it. He procures work in the office of William Hart's steel plant. Against her brother's wish, Hart's sister Muriel adopts a little boy. Hart evens up by adopting John Reeves as his father. Reeves foils James Pettison's plot to ruin Hart. Chester also makes good as a workman and wins the affection of Hart's sister. The father reveals his identity and takes Hart as a partner.
U.S. Secret Service agent Truxton Darnley attires himself as a sailor and boards a schooner owned by arms smuggler Gus Olsen, who is in the employ of German spy Von Linterman to smuggle arms to German raiders in the South Seas. Truxton learns Gus’s plan to blow up the National Munitions Plant in San Francisco, just before his identity is discovery and he is thrown overboard. Washed ashore on the island of Moana, Truxton meets native girl Lurline. Promising to return to her, Truxton boards a steamer bound for San Francisco to foil the plot and soon afterwards Lurline’s father sells her into marriage with Gus. Escaping to Truxton's steamer, Lurline sails to San Francisco where Gus abducts her forcing her to dance in his Barbary Coast saloon. Truxton raids the bar, kills Gus is killed and the lovers are reunited.
Hidalgo offers his daughter's hand in marriage when he can't repay a loan to Manuella. But when Manuella overhears the daughter bidding farewell to her lover, he is so moved by their devotion that he cancels the debt.
Robert Stevens robs the bank where he is employed, and through the efforts of Calvin Stedman, the prosecuting attorney, he is sentenced to six years' imprisonment. While in jail his wife dies and his little daughter, Agnes, is placed in a convent.
A young man with little ambition is given an opportunity to set himself up in business by means of financial support from his father. But the young man becomes involved in a shady railroad deal which threatens to destroy his own father.
Larry Brewster, partner in the music publishing firm of Brewster and Crow, returns from a trip to find that his partner, J.C. Crow has hired Pat O'Rourke as a song plugger.
The Duke, in an effort to 'save' his daughter from marriage to a poor lad of noble birth, hatches a plot which nearly costs the life of that very daughter.
Jim Belmont, believing his wife Agnes loves Gordon Daniels, leaves for the Canadian wilderness with his daughter Cuddles and his dog Shep. He is killed by Mike Murdock at Daniels' instigation. Shep aids and protects Cuddles, who was abandoned to the mercy of the elements by her father's death. The dog fetches the trapper Poleon Dufresne, who sends for Agnes. She is followed by Daniels. Murdock confesses his crime to Dufresne. Shep saves Agnes from attack by Daniels and herds him to a cliff, where Daniels falls to his death. Agnes and Dufresne then wed.
A man is shipwrecked on a South Seas island, and although he has a fiancee back home, he falls in love with a Polynesian girl. When his fiancee finally finds him and arrives on the island to take him home, she finds out that he refuses to leave the local girl, who is now the mother of his child.
The plot concerns a war hero who returns home determined to give up his old ways as a crook. Bud Doyle (Milton Sills) is still being hounded by the cops, and both his wife (Marcia Nanon) and a former associate, a dishonest politician, want to do him in.
Bonnie and Cliff meet cute when she gives him a lift after his car has broken down. Turns out she’s getting ready to open a beauty parlor and bleaches her hair platinum blonde to drum up business much to the chagrin of a local woman’s group. However, when Cliff’s wealthy mother invites Bonnie to be guest of honor at her yacht party things turn around both business and personally for the pair.
The Jewish Nate Cohen and the Irish-Catholic Patrick Kelly are business partners who are constantly fighting. When they find out that Nate's daughter Sadye and Patrick's son Pat Jr. are getting married in Paris, the two and their wives take an ocean liner to France to stop the marriage. When they get there, they find that the situation has radically changed, and not for the better.
Andrew Maxwell is so intent on creating a universal language that he completely neglects his wife, Laurette, and daughter, Ruth. Laurette decides she wants to return to the stage and is encouraged by Charles Prescott, a former suitor. When Maxwell discovers Laurette and Prescott together, he berates her, and she angrily moves out, taking Ruth along with her.
The Isle of Lost Men is one of those lawless tropical island colonies so beloved of adventure-story writers.
A penniless British Lord sets up an arranged marriage with an American heiress. He soon falls in love with her and is determined to support himself financially so they can have a real marriage.
Office boy Bill encounters a group of anarchists and inadvertently involves one of them in a scheme to open a safe. The "W.W.W.'s" stands for "We Won't Work", a comedic take on the real-life labor movement, the Industrial Workers of the World (IWW, or "Wobblies").
When his aunt disapproves of his marriage to Mabel Deering and threatens to disinherit him, Percy elicits the aid of his buddy Billy Haskell, who is engaged to Eileen Stanley. It is arranged that Billy and Mabel be found together in compromising circumstances by Percy and his aunt, but matters are complicated by the arrival of Billy's uncle in the city, and Aunt Emma becomes very fond of him. All is subsequently explained and thoughts of "divorce" are smoothed away as Uncle Todd couples up with Aunt Emma, and Billy and Eileen, and Percy and Mabel, reinstitute their carefree engagements.
When elderly Joseph Moreau and his young wife Therese offer refuge to starving young dramatist Paul Savary, gossips begin to spread rumors of a love affair between the wife and the writer. For the good of all concerned, Paul moves into separate quarters. One day Paul overhears the gossip again at a café and challenges the purveyor of the lie to a duel. Moreau, for his own satisfaction, takes Paul's place in combat and is mortally wounded. Moreau staggers to Paul's apartment where he discovers Therese, who has come to beg the writer to refuse to fight.