A cowboy out to find out who murdered his brother discovers that the killers may not be who he thought they were.

Sergeant Ken Strange, of the Canadian Mounted Police, and his dog, King, are on the trial of the murderer.

After her father is killed by an outlaw, Dolores marries Peter. While they're at sea in the Arctic, Dolores meets the ship's captain, who is the man who killed her father. The captain causes an 'accident' to happen to Peter, so Dolores is all alone and defenceless as they drop anchor in a remote harbour.

Wrongfully convicted rancher Jack Bowen (Neal Hart), imprisoned through the machinations of Dick Thompson (William Quinn), escapes from prison just as the warden (Charles Wellesley) is about to pardon him. Caught after rescuing the warden’s daughter, Betty (Barbara Kent) from her runaway carriage, Bowen is released despite the escape attempt and moves to Calgary to compete in the Stampede. Thompson tries to have Bowen killed during the competition but failing that takes Betty as a hostage and flees. Bowen, Betty’s father and others give chase.