Marguerite and Margot are both twelve years old and are physically identical. Each has her family, friends, problems...and her time. Indeed, one of them lives in 1942 and the other in 2020. But that's without counting on a mysterious magic trunk which carries them into each other's time. Margot and Marguerite have something more in common: their fathers are no longer with them, one having disappeared in the Second World War and the other no longer living in the family home. 70 years apart, they are embarking on an adventure to find again their present, to reconnect to their fathers, explore History, but also the memory of their families.