A series of quarrels with Barney convinces Mildred that she needs to get away from it all. She's all set to leave her husband - as soon as she finds her wedding ring.

Barney and Mildred are planning a "Big Night Out" with a business client, and the grandparents and the young folks will have to sit this one out. Dick and Penny have the impression that the plans are a cover-up for a surprise party in their honor.