Thurlow Michael Barclay Jr., a bookish mathematics professor, is asked by his father to inspect his mine in Kentucky to determine why it's failing. He discovers love with a local girl named Sally and a plot to destroy the mine by local villains.
| Actor | Role |
|---|---|
 Wyndham StandingThurlow Michael Barclay Jr | Thurlow Michael Barclay Jr |
 J. Barney SherryThurlow Michael Barclay Sr | Thurlow Michael Barclay Sr |
| LLouis PierceOld Man Wolf | Old Man Wolf |
| LLeslie HuntBob | Bob |
 Dorothy MackaillSally | Sally |
 Gustav von SeyffertitzJud Benson | Jud Benson |
| AArthur DeweyRandall | Randall |
| MMartin KinneyNed Sawyer | Ned Sawyer |
| KKathryn KingsleyMargaret Barclay | Margaret Barclay |
| NNellie Parker SpauldingMrs. Wolf | Mrs. Wolf |
| AArthur Cadwell Jr.Ben Wolf | Ben Wolf |