Heads of rival lumber camps meet in a fight. Louis Lenoir, a renegade French Canadian, causes the death of "Big" MacDonald, a hard-fighting Scotsman whose life is guided by his dogmatic religious beliefs. His son, Ranald, is left to settle the blood feud. In spite of the pleas of his sweetheart, the daughter of a minister, he participates in a gang fight on the logs in mid-river just as a log drive to Ottawa begins.
| Actor | Role |
|---|---|
 Anders RandolfBig MacDonald | Big MacDonald |
 Warner RichmondRonald MacDonald | Ronald MacDonald |
| HHarlan KnightRev. Alexander Murray | Rev. Alexander Murray |
 Marian SwayneKate Murray (Rev. Murray's daughter) | Kate Murray (Rev. Murray's daughter) |
 E.L. FernandezLouis Lenoir | Louis Lenoir |
| JJack NewtonEugene St. Clair | Eugene St. Clair |
 Pauline GaronMamie St. Clair | Mamie St. Clair |
| FFrank BadgleyFrank De Lacey | Frank De Lacey |
 William ColvinCol. Thorpe | Col. Thorpe |
| MMarion LloydKerstin McLeod | Kerstin McLeod |