How would you react if you were told that the person you love most in the world can not come with you on vacation? What do you prefer to cook in the city on the burning concrete while you stroll on the beach, lulled by the sea breeze? In war as in war! Noemie does not intend to let such an injustice happen! A family vacation without Grandma Lumbago, it would be like ... like sugar cream without sugar! Will the girl manage to fix everything without alarming her grandmother?