With modern advances starting to change things for the better, will medical professionals like Dr Turner and Shelagh look again at their own lifestyles? As the couple fight for better respiratory health for their patients, Timothy realises that his parents are putting themselves at risk by continuing to smoke. When a back injury forces Violet to put her beloved shop in Fred’s care, their relationship grows stronger - but with unforeseen consequences. Across Poplar another family unit appears to be broken before it’s begun, as new mother Roseanne’s past wreaks havoc on her family life. Nurse Crane, concerned about Roseanne's mental state, draws on her own experiences to help her.