S1, E2: Dr. Katrin Herz and newly appointed country doctor Holly Sass struggle to find a harmonious working relationship while Holly is on a quest for clues about her mother. Meanwhile, Dana, a young mother, presents the doctors with an urgent mystery. She experiences extreme mood swings and memory lapses, leaving them puzzled. Amid their professional challenges, Katrin and Holly must collaborate to uncover the cause behind Dana's alarming symptoms, all while navigating personal journeys and uncovering hidden pasts.