Reconciling with her husband after a betrayal and recovering from a yearlong battle with breast cancer, Alice longs for an escape from the trials of everyday life. When the opportunity arises for a once-in-a-lifetime camping trip across France, she packs up her daughters. Alice, teenage Sophie and young Iris begin their odyssey in the French Alps. For the first time since her diagnosis, Alice starts to feel alive, less afraid of dying, and less angry about her husband's affair. But as the family continues south, they start to unravel the yarn that binds them together. By the time they head to the charred Pyrenees, and then back across France to stay in a castle that sits on the confluence of two rivers, Alice worries that the trip might have been a disastrous and reckless mistake.