When Julia's ex-boyfriend, Howard, is in town for the weekend, past and present worlds collide—New-baby stress meets IKEA mayhem, and Charlie's jealousy blows out of proportion. In the meantime, Frankie has come to a realisation—she wants full custody of her and Charlie's eight-year-old daughter, Lou. What's more, Frankie makes the shock discovery that her mother is having an affair with a married man.