Emotions are stirred up at the practice when Dell's daughter arrives; a pregnant woman experiences chronic pain.

When Betsey returns to the ER for a second visit, the concerned Oceanside doctors start investigating the foster family. Amelia struggles to stay sober while Naomi announces a life changing decision affecting her family.

Sam finds his estranged sister, Corinne, in jail, heavily medicated and near-catatonic, and brings her to Sheldon for help; Erica begins secret treatments for her cancer and refuses to let Cooper and Charlotte tell Mason; Cooper, Pete and Addison treat the baby of a drug addict; and things between Violet and Scott continue to heat up in the bedroom.