A lighthouse keeper and his daughter are in trouble on two fronts--if the authorities find out he is going blind they will remove him, and a gang of liquor-smugglers is trying to destroy the lighthouse so they can land their illegal cargo on shore without being spotted.
| Actor | Role |
|---|---|
 Rin-Tin-TinRin Tin Tin | Rin Tin Tin |
 Louise FazendaFlora Gale | Flora Gale |
 Charles Hill MailesCaleb Gale | Caleb Gale |
 Douglas GerrardEdward Cavanna | Edward Cavanna |
 Matthew BetzJoe Dagget | Joe Dagget |
 Joseph W. GirardInspector #1 | Inspector #1 |
 Lew HarveyShifty Eye | Shifty Eye |
| TTexas KidHenchman | Henchman |
 William Collier Jr.Albert Dorn | Albert Dorn |