Noah is only days away from his first trip back to Nice since he was a child when a social works calls looking for a temporary home for Michael, his eleven-year-old great-nephew. Though he has never met the boy, he gets talked into taking him along to France. This odd couple, suffering from jet lag and culture shock, argue about everything from steak hache to screen time, and the trip is looking like a disaster. But as Michael's ease with tech and sharp eye help Noah unearth troubling details about their family's past, both of them come to grasp the risks that people in all eras have run for their loved ones, and find they are more akin than they knew.