Harry Morton is happy to learn that wife Blanche has been summoned for a month's jury duty. When he calls the judge to be sure they accept Blanche, Harry is only thinkin g about enjoying a month of peace and quiet. But the judge suspects it is a ruse to avoid serving on a jury. In the confusion, Gracie manages to get her name on the list for jury duty too.

Gracie creates mayhem as a juror on a counterfeiting case. She confounds the judge and her fellow jurors with her usual antics, and her mishandling of the evidence ultimately gets Harry Von Zell into big trouble.