For Poppy's medical bills, Shirley becomes a nanny for the Sutton family. She faces suspicion from Alistair Sutton and harassment from Caleb Sutton. She helps Lydia Sutton expose a scumbag. Alistair falls for her. They discover Caleb assaulted Poppy, causing her coma, and framed Alistair for family fortune. Shirley traps Caleb; he's arrested. Awakened Poppy confirms Alistair loves Shirley. They overcome class barriers, are together, and Shirley is pregnant.