Funds are embezzled and a fur trapper is murdered. Rin Tin Tin to the rescue!
| Actor | Role |
|---|---|
 Francis X. Bushman Jr.Brad Sheridan | Brad Sheridan |
 Lois WildeCaryl Foray | Caryl Foray |
| RRin-Tin-Tin Jr.Rinty | Rinty |
 Josef SwickardJean Foray | Jean Foray |
 Bob WalkerEnos Colvin | Enos Colvin |
 Earl DwireCaptain Bradshaw | Captain Bradshaw |
 George ChesebroConstable Jim O'Brien | Constable Jim O'Brien |
| JJack HendricksConstable Gary | Constable Gary |
 Steve ClarkCaptain Edwards | Captain Edwards |
 Artie OrtegoIndian Joe (uncredited) | Indian Joe (uncredited) |