Roger, Colette and Nicole embark with determination on a remake of Mission Impossible: to bring back to France the coffin of their beloved older brother who died in 1944 and is buried in a military cemetery in Oran. To do this, they will have to overcome administrative hell and, at over 90 years old, learn to tame the digital world with Siri, sms, emails and the tablet. For the better and for life.