Sins of Ambition

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.

Dr. Stannard Wayne - like all "good" men of the times - is a God-fearing soul. He marries the former mistress of his friend, Dr. Arthur Richards, without knowing her past. Richards, an abortionist, resumes his affair with the woman and runs off with her. But before he leaves, he frames Wayne for one of the illegal operations he has done, and the innocent man is sent to prison for five years. When he gets out, Wayne has become angry and cynical.

Gordon Palmer is a lazy and cowardly rich man's son. When he and his fiancée, Aileen Merton, are held up by two crooks, Slug Williams and Beef O'Connell, he passively allows them to take whatever they want. At least he comes to life when they try to steal Aileen's engagement ring - he scares them into giving that back. Aileen, however, is pretty fed up with him.

Nurse Lucy Weston, seeks revenge and marries a young millionaire she believes is responsible for her father's death.

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.

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.

Jack Pickford got his own production company when his sister Mary signed a huge contract with First National, and this was its first product. the story takes place in the Blue Ridge mountains, where the Appersons and the Yartons have an ongoing feud.

With an eye towards social climbing wealthy Dustan Renshaw breaks his engagement with Janet Preece to wed socialite Leslie Brown. Moving abroad after marriage Leslie welcomes her friends the Stonehays while Dustan is away, accompanied by their private secretary, Janet Preece. Janet's sudden illness compels her to remain, and the two women become fast friends. Leslie learns the story of Janet's betrayal by a man known to her only as "D. R. Devastated to learn the truth Leslie leaves Dustan but as time passes, they are reunited at Janet's deathbed.

Barbara Rand is blinded when she leaps through a window to escape an assailant. Her sister, Natalie, reluctantly abandons her fiancé, Ned Gardiner, and marries Oliver Landis, who can provide the money needed for Barbara's operation. Unaware that Oliver was Barbara's attacker, Natalie blames his business partner, Howard Pollard, who was with Barbara on the night she was injured. Natalie holds Howard at gunpoint, but when her husband arrives, he promises to deal with the villain making sure Howard falls to his death. Upon Barbara’s release from the hospital, Oliver tries to blind her once. Natalie threatens him with a pistol, but Oliver wrests it away from her. He then realizes that he can no longer hide his guilt from Natalie or the police and shoots himself. Barbara has been avenged, and Natalie is free to marry Ned.

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.

Grace Ainsworth wants to return to her career as an opera singer, and her mother-in-law supports her. Grace's husband, Edwin, wants her to stay at home and to convince her, he relates the story of his latest play about a man who allows his wife to return to the stage. Edwin comes to believe that Grace is in love with Harold Chase, a manager, and the couple separates. Edwin has an affair with a dancer, Madeline, and he winds up in a fight with her dancing partner, Vincenti, which causes him to lose his memory.