William Hamilton Osborne

A former Annapolis cadet is thrown out of the Naval Academy for cheating on an exam. Of course he was framed, but he must enlist in the Navy to clear himself. Meanwhile he and his sweetheart search for a buried treasure on Lost Island, which everyone is after.

Karl "Curly" Casterline, a wrongfully discharged New York City policeman, finds work on the Midwestern farm of Adolf Bauerle to help the war effort. Curly is attracted to his boss's niece, Mina, but also realizes that Adolf and his cohort, Kurz, plan to blow up a troop train. Curly kills the two saboteurs and saves the train, but he is jailed by the abusive Sheriff Herman Lindig. Although Mina praises Curly for saving the soldiers' lives, he is sentenced to death and is denied a pardon from the governor. After the case attracts national attention, the governor explains that he prolonged Curly's incarceration to draw attention to the danger of German propaganda.

When the body of Col. S.F. Hargraves was found in a room in the rear of Cradelbaughs, a gambling house, with a bullet in his heart, the police found "Big Jim" Pemmican, the manager of the place, coolly pacing the floor when they arrived.

Angelone, a poor Italian man, works hard in America to support his family back home and eventually bring them over. A mix-up leads to him having to serve time in prison. This film appears to be lost.

Wealthy diamond collector Larry Hanrahan is given the opportunity to assist the beautiful, jewel-bedecked woman he admires in a Broadway café when she and her guardian are attacked by robbers. Larry is invited to visit the grateful pair, Col. Paul Gascoyne and his ward Adrienne, at the colonel's laboratory, where he is introduced to Wintermute, a chemist who produces imitation diamonds. In return, Larry asks them to view his priceless diamond collection. Although he has fallen in love with Adrienne, Larry is forced to believe that she is a thief when he is robbed by a woman wearing Adrienne's scarf. Larry finds his jewels in Gascoyne's house, but before he can escape, a group of thugs overpowers him. Adrienne assists him in contacting the police, who arrive in time to capture Gascoyne and his gang. Badly wounded, the colonel confesses that Adrienne has been his innocent dupe, whereupon Larry happily takes her to his heart.

Millionaire meat packer Peter Cameron, greedy for more money and power, maneuvers an alliance between his daughter Rose and George Gray, the son of Cameron's business rival Max Gray, in order to increase his control of the food industry. George, a lawyer, opposes the trust, and as a result is professionally ruined by Cameron, disinherited by his father, and jilted by his fiancée. Out on his own, George gets a job at a mill and starts at the bottom. When an epidemic breaks out among his fellow laborers due to their eating spoiled meat from the trust, George secures evidence of criminal practices which ultimately brings about the conviction of Cameron and the trust. In championing the rights of the downtrodden, George wins back Rose and reforms Cameron.

Virginia Chester visits her Aunt Betty who resides near an army post. Lieut. Calhoun falls in love with Virginia, and after a whirlwind courtship persuades her to marry him secretly. Helen Brassey, the daughter of the Colonel, is in love with Calhoun, and gets her father to help her win the lieutenant's affections.

Crooked banker Peter V. Wilkinson intentionally drives his own company into bankruptcy and puts the bank's deposits into a secret account he has set up using his daughter Leslie's name. A series of events occurs in which Leslie finds out what her father has done and sets out to get him to return all the money he has stolen.