Margate 1884. When 17-year-old Hannah Bentley fled the family home she never dreamed she'd find her feet working as a nurse on the children's ward at the Royal Sea Bathing Infirmary. She adores her patients and the sea air and looks forward to a time when she'll have put away enough money so her younger sister can join her. But when her sister suddenly turns up unannounced she brings more trouble than Hannah bargained for. As Hannah is forced to risk everything to keep her sister out of trouble she must somehow find the strength to save herself too...