Joyce Tolliver, whose nickname is Muggsy, plays baseball, fights and swears with boys, and is severely punished by her elders. When she grows up, she is disguised as a boy, and sent to live with a wealthy old uncle, Leslie Bolton, who hates women. Her ruse works perfectly until she falls in love. When Bolton e discovers that his supposed nephew is really his niece, he orders her out, but after he realizes that he cannot get along without her, he sends for her to return.

Director: Sherwood MacDonald