Captain Drummond and his girlfriend want to marry but a hidden treasure in the house in which they want to celebrate their marriage is complicating the situation.
Mystery | Thriller
| John Howard | … | Capt. Hugh C. ‘Bulldog’ Drummond | |
| Heather Angel | … | Phyllis Clavering | |
| H.B. Warner | … | Col. Nielson | |
| Reginald Denny | … | ‘Algy’ Longworth | |
| E.E. Clive | … | ‘Tenny’ Tennison | |
| Elizabeth Patterson | … | Aunt Blanche | |
| Leo G. Carroll | … | Henry Seaton, alias Albert Boulton (as Leo Carroll) | |
| Forrester Harvey | … | Prof. Downie | |
| Clyde Cook | … | Constable Hawkins | |
| David Clyde | … | Constable Jenkins | |
| Neil Fitzgerald | … | Rockingham Stationmaster | |
| Elspeth Dudgeon | … | Mrs. Thomas, Housekeeper |