Higgins, a young police officer, is suspended for sleeping while on duty, and Jennie Lee is sent to cover his beat. Jennie determines to make good and has a series of adventures which test her courage, but she comes out with flying colors. Fatty Jones, who has been celebrating with some friends, spies the young officer and asks her to assist him home. Jennie is inclined to protest, but Jones insists that it is her duty. Complications arise when Mrs. Jones sees the pretty young woman helping her husband to his residence. Officer Higgins, plotting vengeance, is the means of Jennie's undoing by placing a mouse in her pathway. She blows her whistle and Higgins, who has been reinstated, hastens to her rescue. That evening, when both are off duty, Higgins proposes end Jennie decides to resign from the force.
