For excitement, millionaire William Brooks assists the New York fire department, using both a fire alarm and pole in his home.  He also helps the police department, but when the District Attorney cracks down on crime, Billy goes to Murdero, Mexico to look for thrills.  There, after a visit by Pancho Villa quells the fighting Billy enjoyed, he welcomes a cable urging him to come to the small European kingdom of Alaine to find his unknown mother and learn the source of the mysterious payments that support him.

In Alaine, Billy is pleasantly surprised to find the country in political turmoil.  After Billy subverts the plot of the king's minister of war to overthrow the king, and leads the cavalry to stop the people's uprising, Billy discovers that the king's daughter is his mother, and that the king's ward is the countess with whom he has fallen in love.  After marrying her, Billy makes the country a republic.