When 80-year-old Marie announces a family trip to Switzerland to collect a mysterious inheritance, her unreliable son and teenage granddaughter join her in a battered camper van. With a reluctant caregiver as driver, the unlikely group sets off on a chaotic and heartfelt road trip. Along the way, love, laughter, and the messy beauty of being together emerge unexpectedly. Will Marie find the courage to reveal the true purpose of their journey?