Marguerite and Margot are both 12. Each has their own family, friends, problems… and era! One lives in 1942 and the other in 2020. But when a mysterious magic chest transports them to each other’s era, they then have something else in common: their father is no longer there, one vanished during World War II, the other is not living at home. With 70 years apart, they embark in a wild adventure to find their present, explore history and their families’ memories.