Pauline's new cupcake business thrives. Meanwhile, Sarah and Jack get a surprise visit from Sarah's dad, who tells them he left his wife and needs a place to stay; and Gervaise records his debut album in the studio, but isn't pleased when his girlfriend, Vicki, invites Lindsay to help out.
Pauline goes away on a training weekend, during which Joe watches football in her off-limits "good room," while Dot uses the house to entertain her pals. Elsewhere, Vicki helps Gervaise with the photo shoot for his album cover; at the same time, Jack and Sarah get more than they bargained for when taking a class to prepare for their baby's birth.
Sarah's pregnancy gives Jack extra incentive to move out of his parents' house; Pauline becomes the family breadwinner, taking a job as a real-estate agent, but she might be too honest to succeed; and Dot is surprised by an inheritance.