David Summers, who has ventured to Alaska in search of his father, falls victim to the elements and is rescued by Tiger's Cub, so named because the man who claims her as his daughter uses the pseudonym of Tiger. Unknown to David, a few days prior to his arrival, the Tiger and his partner, Bill Slack, had cheated David's father in a crooked poker game and then killed him. After he is rescued, David goes home with the girl, whose mother is ill, and the two fall in love. Soon after, Tiger returns, having promised his daughter to Slack in return for half interest in the mine which they stole from David's father. Presented with the ultimatum of consenting to the marriage or having her invalid mother cast into the snow, the girl consents to the sacrifice. After the ceremony, Slack attempts to rape the Cub, but David arrives in time to rescue her, while Slack is killed by the unseen hand of Hilda, the wife he deserted. Tiger is arrested for the murder, and with the revelation that he is not the Cub's real father, the path is cleared for a happy union between David and Tiger's Cub.