War has been declared and the lives of three sisters, Lydia, Peggy and Teddy, are about to be turned upside down. As bombs rain down on London, the girls will lose their homes, their things, their loved ones . But they will find lost kittens, friendships with fellow rebels, the need for art, the strength and love to carry on, and a greater sense of family than ever. And with each other's help and with the radical changes to society that war brings, the three sisters will discover the essence of who they truly are. Lydia's story: it's 1939 and war has been declared. The girls have been evacuated to the countryside. Lydia, the oldest and always the sensible one, is finding a way to make everyone feel safe - with her cooking! But the weight of responsibility begins to feel unbearably heavy and Lydia decides to take drastic, dangerous action . Peggy's story: it's 1943, and the girls are back in London, crammed into a house in Peckham Rye, with numerous friends and relatives.

Peggy, the arty one, is at school and hating it. Inspired by her new friend Arno, a refugee from Germany, Peggy is determined to go to Art School, whatever the cost . Teddy story: it's 1946 and the girls are living through the War's aftermath. Teddy, the clever one, is excelling at school. So when a school trip to Paris is on the cards, the family are keen to find the money for Teddy to go. Little do they know that, instead of learning French, Teddy plans to try and find one of the family's very dearest lost loved ones .