Terry O'Neill is the youngest of a family of Irish firefighters. He falls in love with Helen Corwin, but complications ensue when Terry learns that her father, a wealthy contractor, has cut costs by putting his buildings in danger of fire.
Patrick Angus O'Toole is a military officer assigned to investigate a gang of gunrunners operating near Fort Sumner in the Dakota Bad Lands. At the fort, O'Toole comes to the aid of Mary Owen, who is being harassed by Captain Blake. The irate Blake gives Mary's cowardly brother, Hal, 24 hours to pay his gambling debt. In desperation, Hal robs the Pony Express, a crime for which O'Toole is arrested.
When Silent Sanderson's brother kills himself over the rejection of a woman, Silent blames Judith Benson and leaves the family homestead to begin a new life in Alaska. He is later reunited with Judith Benson, only to discover that his brother didn't commit suicide at all but was murdered by the woman's jealous husband.
Lucius Merrimore is the wealthy owner of a mine called "the Gold Girl," and as a result his daughter, Helen, has an endless number of suitors. Needless to say, she gets tired of being courted only for her money, so she attends a party under an assumed name. There she meets Schuyler Livingstone, and they are immediately attracted to each other. What Helen doesn't know is that her father has paid Livingstone to marry her.
