Joan, a refined young Salvation Army volunteer, fall in love with a gangster.

A grandmother has an adventure for the first time in her life when she decides to have a night out.

Crook Dave Darcy gets reformed by working in a steel mill owned by someone who witnessed his crime.

Foreign powers keep getting their hands on U.S. military secrets, so the head of the American diplomatic corps calls in his nephew Dick Stansbury to help. Stansbury knows that Doctor Montell is at the bottom of this, so he poses as an inventor of an innovative aerial gun. This sparks the doctor's interest, and when they both attend a weekend party at the Ryerson estate, Montell tries to get Stansbury to sell the gun to his country.

Happy Jack, the popular Hash Magnate of Harlem, is suddenly seized with high social aspirations and decides to carry out his ideas, to the great dismay of Lizzy Potts, the cook, who loves Jack.

Enemy agents under the leadership of "Emanon" conspire with pacifists to keep the American defense appropriations down at a time when forces of the enemy are preparing to invade. The invasion comes, and New York, Washington, and other American cities are devastated.

Right after a husband and wife (Robert Edeson and Eulalie Jensen) arrive home from their honeymoon, the husband goes to fetch his sister from boarding school. While he is away, the wife's friend and neighbor, McGregor (Harry Morey), invites her to a party, and she accepts. On the way back home, they're involved in an accident, and McGregor takes the wife, who's unconscious, to recover at a nearby roadhouse. Unfortunately, McGregor's coke fiend brother (William R. Dunn) is there partying, and he threatens to put a seamy spin on the innocent situation and tell all.

Robert Wallace, the elder son of a rich and indulgent father, marries Margaret Christy, a spirited patriot, so that he can escape the call to war. Discovering the reason for Robert's haste to get married, Margaret is appalled and resolves to bring home to her husband a sense of his personal responsibility. In order to instill patriotism in Robert, Margaret contrasts him with John Harding, the man who gave her up to go to war. When Robert protests his wife's tactics, Margaret accuses him of being a contemptible coward. The next day a German insults the American flag, and Robert, his sense of justice aroused, makes him salute it. He then bids Margaret farewell and marches off to war. Margaret sees him off without divulging the secret that she is pregnant, thus sacrificing her own welfare for that of her country.

A wealthy young athlete comes to the aid of a beautiful heiress, whose fortune is being threatened by two arch villains, The Great Master and Doctor Zulph.