Set against the backdrop of the shell crisis of 1915 at home and the Battle of Loos on the Western Front, two soldiers, one the manager of Grimlaw’s munitions factory are tested in their rivalry for Diana, a red cross nurse (Madeleine Carroll in her first film role).
| Actor | Role |
|---|---|
 Henry VictorJohn Grimlaw | John Grimlaw |
 Madeleine CarrollDiana Cheswick | Diana Cheswick |
 Bobby HowesDanny | Danny |
 Hermione BaddeleyMavis | Mavis |
| DDonald MacardleClive | Clive |
 Adeline Hayden CoffinLady Cheswick | Lady Cheswick |
| JJeanne le VayeArlette | Arlette |
| PPhilip HewlandStevens | Stevens |
| FFrank GoldsmithCol. Jameson | Col. Jameson |
| TTom CoventryTubby | Tubby |
| TTom CoventryOfficer | Officer |
 Wally PatchSergeant | Sergeant |
| DDavid LaidlawHimself | Himself |