Mary Alden and her brothers Matthew and George have extremely different political views. Matthew is a committed pacifist, and is constantly giving speeches against war. George is notified that his draft number, 258, has been called and to report for induction, but he refuses. Mary, on the other hand, is intensely patriotic and comes up with a plan to shame him into reporting for induction. Meanwhile, Matthew is being set up for a patsy by a gang of German secret agents, led by Van Bierman, who are planning to blow up an airplane factory.
| Actor | Role |
|---|---|
 Mabel TaliaferroMary Alden | Mary Alden |
 Walter MillerJohn Graham | John Graham |
 Eugene BordenGeorge Alden | George Alden |
 William H. TookerAmiel Van Bierman | Amiel Van Bierman |
 Sidney D'AlbrookItalian | Italian |
 Robert AndersonNicolo Reisso | Nicolo Reisso |
| EEarl BrunswickMatthew Alden | Matthew Alden |
| SSue BalfourMrs. Alden | Mrs. Alden |
 Camille DalbergMarcita Blein | Marcita Blein |
 Baby Ivy WardBelgian child | Belgian child |
| EEdwin BoringKaiser | Kaiser |
| JJames CoganNot listed | Not listed |
 Warren CookNot listed | Not listed |
| JJoan EdisNot listed | Not listed |
 Millicent FisherNot listed | Not listed |
| AAsta FlemingNot listed | Not listed |
| DDonald GallaherNot listed | Not listed |
| JJack GoodmanNot listed | Not listed |