Dreamer dairyman Phineas Dobbs of Cow Hollow suddenly acquires a fortune when oil is discovered on his ranch, and celebrates by throwing a party for the whole town. One day a young woman comes to town, delayed by train trouble. Dobbs rescues her from the town bully, and agrees to follow her to San Francisco. The woman is actually a princess who is being forced into a marriage with a man who wants to share her throne. Dobbs rides by Market Street to the St. Francis Hotel in his Western garb, and performs daring stunts to rescue the princess in distress. Together they free the princess' father. Dobbs then returns to Cow Hollow, and the princess gives up her throne to become Mrs. Phineas Dobbs.