Danielle is 90 years old and has a dream: to go on an adventure, from Russia to China, via Mongolia, aboard the Trans-Siberian. She would have taken this trip with her friend Lina, but she lives in a retirement home. When Juliette, her granddaughter, offers to take her there, she jumps at the chance to meet a woman of her age in each country she crosses. Intimate words and knowledge from elsewhere intertwine, in order to convey a portrait of women, funny and sensitive. The adventure then becomes an act of transmission, and the long journey, a hymn to life!