Yetta's retirement home is being fumigated for termites, so Sylvia asks Fran to let Yetta stay over for a few days. Fran has a tough time convincing Mr. Sheffield to let Yetta stay. Maggie has a new boyfriend and Fran discovers that Yetta told her to go for it. Mr. Sheffield decides to break into Yetta's room after they smell smoke coming from it and they find Yetta with a man in her bed, which only makes Mr. Sheffield more upset and C.C. more depressed. But luckily Fran discovers that Yetta told Gracie to go for it (since she was afraid of the end of the world), not Maggie, who decided to dump her boyfriend.